The almost 40-page brochure intended for HTML coding for beginners and tutorials but also advanced users can learn something new, overall is the best place to learn. The concept of the lean testing, a combination of testing important test cases and a manageable cost, is in the foreground.

html

Andreas Sanesh and Ulrich Breymann, the authors of the book “Tutorial for html web page and css”, have developed a digital brochure on the “lean testing of combinations with n wise test & decision tables”, that on her when the dpunkt.verlag Book is based.

With this brochure, beginners with HTML and CSS  gain insight first, what test procedures there are Combinatorial testing and how they engage with reasonable effort can be. All the test procedure demonstrates through code examples and with the help of Google testing frameworks. Lean testing will help the developer testing appropriate for his problem in a reasonable time. Condition is to demonstrate the required quality testing.

 

Because of some needs, Skiyo team also started to develop module development for nginx. After reading some information, we wrote our first nginx module.

In fact, the development of nginx module is relatively easy. There are many modules for online open source, which can be used for reference. What shocks me is the OAuth module.

Here you can find good exaples of HTML codes and tutorials for beginners.

The nginx module compares some back-end language implementations. The most important feature is that the speed is fast. This is understandable. The difference between nginx module and apache is that apache loads the so module, and nginx directly compiles the module into the main program. Under my simple test, a very simple module with business logic can reach 1-2w/s requests. If your machine is good enough, this data is more impressive. For a PHP, it can be very good to be able to press 5000/s.

Personally feel that nginx module development data is still relatively small (seemingly contradictory with the above said = =), development is still embarrassing, so if you want to try some nginx module development, and apply to the production environment, recommend some business logic is relatively simple Think again.

Another advantage of nginx module development is that it is very easy to deploy and the compilation is very simple.

web page tutorial

Well, nonsense will not say, the following gives a hello world demo. There are already many examples of hello world on the Internet, which is still very complicated in my opinion. Skiyo team still have to say it by ourself.

Before developing the module, we need to create a new file called “config”. When nginx compiles, let the main program compile my module. If you want more entry level check our previous post about the Best place to learn html, tutorial for beginners, and advanced coding css and html

In this hello world example, config looks like this:

1
2
3
ngx_addon_name = ngx_hello_world_module
HTTP_AUX_FILTER_MODULES = "$ HTTP_MODULES ngx_hello_world_module" 
NGX_ADDON_SRCS = "$ NGX_ADDON_SRCS $ ngx_addon_dir / ngx_hello_world_module.c"

Need to pay attention to the name of the module and the location of your module source code

Then create a new ngx_hello_world_module.c in your directory.

Then enter the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
#include <ngx_core.h> 
#include <ngx_http.h> 
#include <nginx.h>
 
static  char  * ngx_hello_world ( ngx_conf_t * cf , ngx_command_t * cmd ,  void  * conf ) ; 
static ngx_int_t ngx_hello_world_get_output ( ngx_http_request_t * r ,  char  * out_buf ) ; 
static ngx_int_t ngx_hello_world_handler ( ngx_http_request_t * r ) ;
 
/ * Commands * / 
static ngx_command_t ngx_hello_world_commands [ ]  =  { 
    { ngx_string ( "ngx_hello_world" ) , 
      NGX_HTTP_LOC_CONF | NGX_CONF_NOARGS , 
      ngx_hello_world , 
      NGX_HTTP_LOC_CONF_OFFSET , 
      0 , 
      NULL } ,
 
      ngx_null_command
};
 
static ngx_http_module_t  ngx_hello_world_module_ctx = {
    NULL,                                  /* preconfiguration */
    NULL,                                     /* postconfiguration */
 
    NULL,                                  /* create main configuration */
    NULL,                                  /* init main configuration */
 
    NULL,                                  /* create server configuration */
    NULL,                                  /* merge server configuration */
 
    NULL,                                  /* create location configuration */
    NULL                                   /* merge location configuration */
};
 
/ * * / Remedy 
ngx_module_t ngx_hello_world_module =  { 
    NGX_MODULE_V1 , 
    & ngx_hello_world_module_ctx ,               / * module Context * / 
    ngx_hello_world_commands ,                  / * module directives * / 
    NGX_HTTP_MODULE ,                        / * module type * / 
    null ,                                   / * init master * / 
    null ,                                   / * init module * / 
    NULL ,              / * init process * / 
    NULL ,                                   / * init thread * / 
    NULL ,                                   / * exit thread * / 
    NULL ,              / * exit process * / 
    NULL ,                                  /* exit master */
    NGX_MODULE_V1_PADDING
};
 
 
static ngx_int_t ngx_hello_world_get_output(ngx_http_request_t *r, char *out_buf){
 
    sprintf(out_buf, "%s", "Hello World!");
    return NGX_OK;
}
 
static ngx_int_t
ngx_hello_world_handler ( ngx_http_request_t * r ) 
{ 
    ngx_int_t rc ; 
    ngx_buf_t     * b ; 
    ngx_chain_t out ;
 
    /* Http Output Buffer */
    char out_buf[20] = {0};
 
    if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) {
        return NGX_HTTP_NOT_ALLOWED;
    }
 
    rc = ngx_http_discard_request_body(r);
 
    if (rc != NGX_OK && rc != NGX_AGAIN) {
        return rc;
    }
    //定制头信息
    r->headers_out.content_type.len = sizeof("text/html") - 1;
    r->headers_out.content_type.data = (u_char *) "text/html";
 
    if (r->method == NGX_HTTP_HEAD) {
        rc = ngx_http_send_header(r);
 
        if  ( rc == NGX_ERROR || rc > NGX_OK || r -> header_only )  { 
            return rc ; 
        } 
    }
 
    / / Get the output body 
    ngx_hello_world_get_output ( r , out_buf ) ;
 
    b = ngx_pcalloc ( r -> pool ,  sizeof ( ngx_buf_t ) ) ; 
    if  ( b == NULL )  { 
        return NGX_HTTP_INTERNAL_SERVER_ERROR ; 
    }
 
    out.buf = b;
    out.next = NULL;
 
    b->pos = (u_char *)out_buf;
    b->last = (u_char *)out_buf + strlen(out_buf);
    b->memory = 1;
    b->last_buf = 1;
    r->headers_out.status = NGX_HTTP_OK;
    r->headers_out.content_length_n = strlen(out_buf);
 
    rc = ngx_http_send_header(r);
 
    if  ( rc == NGX_ERROR || rc > NGX_OK || r -> header_only )  { 
        return rc ; 
    }
 
    return ngx_http_output_filter(r, &out);
}
 
static  char  * 
ngx_hello_world ( ngx_conf_t * cf , ngx_command_t * cmd ,  void  * conf ) 
{ 
    ngx_http_core_loc_conf_t * clcf = ngx_http_conf_get_module_loc_conf ( cf , ngx_http_core_module ) ;
 
    /* register hanlder */
    clcf->handler = ngx_hello_world_handler;
 
    return NGX_CONF_OK ; 
}

Then compile.
What you need to understand when compiling is that we don’t have to compile our module. We only need to add the –add-module parameter when compiling nginx.

In addition, nginx rewrite is required to use the pcre library, so before compiling nginx, please compile and install pcre.

Then go to the nginx directory and configure

View Code

1
./configure --prefix=/home/www/nginx --user=www --group=www --add-module=/home/www/download/ngx_hello_world --with-cc-opt="-I /home/www/pcre/include" --with-ld-opt="-L /home/www/pcre/lib"

After –add-module is the directory address of our module. This directory contains the config file just written. The latter two are the directories that specify pcre. If you do not specify the installation directory when you configure pcre, you can remove these two parameters. .

After the compilation is complete, our module is “fitted” with the nginx main program.

At this point we enter nginx.conf and add the following information to your server block:

1
2
3
location /hello {
	ngx_hello_world;
}

Then start nginx, then open your server / hello can see the output hello world information. If you are interested, you can use PHP to write a Hello World, and then press to compare performance:)

The following is the package download of this module:

ngx_hello_world

HTML tags and programming languages tutorial

Place 2 used Python in the ranking of the most popular programming languages in the classroom. In contrast to BASIC Python already more recent thinking of programming takes up – about the block structure and object orientation. Thus, it resembles more familiar languages such as Java, C++ and c#, which are widely used in the industry. This Python is considered but easier to learn.

We will enter at this point doesn’t matter, what object orientation really means you are anyway quickly learn that if you are dealing with Python. Only so much be said: sound knowledge in object-oriented programming language is a very useful skill. You can download an Python Interpreter free of charge.

If you want to learn Python, there are that many online posts and courses as the ” complete Python boot camp “and” the complete Python developer course “.

html

With the currently explosive market growth of Android smartphones and tablets, you might have but also the desire to develop your own apps. A large part of all apps is written in Java (which is not the same as JavaScript, more on that later). Also in terms of career opportunities, learning could by Java will be helpful for Android still gaining popularity. Java is one of the object-oriented languages – the step about Python to Java would be so logical. If you want to learn Java, you have several options: the Java Developers Kit (JDK) is available free of charge and runs on your PC.

Alternatively, there are also various online tutorials where you can write the HTML code online and try it out on a Web page, CompileJava is one of them.

If you it very specifically au f Android app development have aside, you need Android Studio and – in addition to the Java language – a good introduction to the Android development environment. Rush so nothing and concentrate better only on Java.

Nowadays, most programming languages are object-oriented. Although the syntax of individual languages varies, it still is you easier to switch to another after learning an object-oriented language. If you want to know which programming languages in the industry is most commonly used, take a look in the Ttiobe index.

Web programming with HTML and CSS

Fürs Web programming is fundamentally different than anything we have previously addressed. Still worth the effort, to learn Web programming. To use for creating rather simple Web pages usually HTML “HyperText Markup Language”, the best in the Latest version of HTML5 . As a “markup language” HTML puts together a list of instructions and commands, which are executed in sequence, but describes how text and images on the screen should be displayed. The major part of an HTML document therefore also often consists of the text that you see on the Web page – however interspersed by so-called tags. For example the day < header > is a text the following text is represented as a heading. This principle is of course more complex as you add more images, graphics, tables, and links.

Validation tools for HTML, CSS, and JavaScript

Couple weeks ago on our Skiyo Blog, some users asked for validation tool. The software enough to to create HTML that is usually already on your PC. An HTML document can be written in a normal text editor such as Notepad, for example – as long as the .htm or .html file name. Since then opens the document as a Web page in your default browser. Most browsers now also display the HTML code of a Web page you, that you have just called. Professional tools – about the CoffeeCup Free HTML Editor – provide advanced functions, such as the dyeing of tags in the document for a better overview.

HTML forms the basic structure of a Web page, but you get an appealing layout only with CSS (cascaded style sheets CSS). An example of how CSS works: HTML can transform a plain text in a heading. In the best case the browser, the page is called, used his standard font type, size, and color for each level of the heading. With HTML, these properties can be adjusted manually singly – CSS makes it even easier. Because a separate CSS document can determine exactly what each level of the heading should look like. And if a change is necessary, you replace just the CSS document instead of working all of the HTML code. With a CSS document can be missed, for example, each sub-page of a website of the same corporate look, without each time having to retype the formatting options.

Webmaster tools for HTML, CSS, JavaScript, and Web apps

One on HTML and CSS-based Web page is static – only an additional programming language can incorporate dynamic content. You must so to insert code that responds to the actions of the user. This type of code is running, for example, if you log in on one side. Typically, JavaScript is used for code to run in the browser or on the client machine and PHP to run on the server .

Other teaching resources

Of course you not only face the challenge of learning a new programming language. Outside help is there almost everywhere – also and especially for those who don’t want to learn full time. For example, Codecademy is recommended. Very helpful, and definitely there are the Programming course from Udemy worth a look.

Suitable especially for code beginners and children 9 years and older (with good English knowledge) online courses (projects called) of the Code Club . Who would rather live wants to learn with others under the guidance and programming, is always a Dojo in its proximity in the CoderDojo . The app ” apps for good ” helps young people in programming their own apps.

Last time I said about the OAuth protocol ..

Just use the example to give an example. But I didn’t elaborate on the protocol..

Today I will introduce the difference and improvement between 1.0a and 1.0..

The premise is that you have already seen the agreement.. have a simple understanding of the agreement..

The improvements in 1.0a mainly include the following:

1. The oauth_callback parameter is placed in the request Token.. The callback parameter is no longer accepted in authorize. At the same time, when the request Token returns the parameter, the oauth_callback_confirmed parameter is also added. The value must be true.

At 1.0, we need to specify a callback address. We need to bring in the callback parameter when requesting authorize. Then use it for user authorization and return.

In 1.0a, the parameter of this oauth_callback becomes a mandatory parameter. And the address must be placed in the first request Request Token. Also as a parameter of base_string. If the callback address of the third-party application does not exist or is otherwise impossible An application with a callback address (such as a desktop application). This parameter must be [oob] (the content in square brackets is case sensitive). If the server receives it, you need to add an oauth_callback_confirmed parameter. The value must be [true] (in the brackets).

2. After the authorization is over, increase the oauth_verifier parameter.

After the authorization is successful in 1.0, jump directly into the callback to obtain the Access Token operation.

In 1.0a, after the authorization is successful, the server will return a parameter named oauth_verifier. It is used as the necessary parameter to get the Access Token in the next step.

If the third-party application does not have a callback address, the server needs to display the oauth_verifier parameter and inform the user that it needs to manually authenticate to the third-party application. The service provider needs to ensure that the value is available on some special devices (such as mobile phones). Manual input.

This parameter is not needed during future request API validation.

Ok. I know the difference is so much.. If you have any difference, you can tell me to supplement it.

In addition, the 1.0a protocol is now obsolete. Because OAuth already has a formal 1.0 protocol and has become the RFC5849 standard.

OAuth seems to have received too much attention from the industry since birth.. Several large wall sites have OAuth authentication APIs..

Chatting in the group today. Someone asked me: In addition to Douban everyone Sina Weibo. Which one provides api?

I suddenly said it. I feel a bit bleak for the domestic environment..

Far away.. Let’s analyze OAuth today.. How to use OAuth.

The reason for writing this article is that when I was learning the OAuth protocol.. I found some articles.. are from a document called [OAuth Development Documentation.docx]..

More general.. and not easy to understand..

So I think I need to describe the OAuth protocol in my own words.

For a better explanation, let’s use the watercress as an example.

A user A has registered an account on Douban. After logging in, he can perform some actions, such as publishing a broadcast.

So good. Now there is a website B.. I want A to post a broadcast on my website..

But there is a problem. Website B is unreliable for User A. User A does not want to put his account password on Website B..

In addition, Website B is also unreliable for Douban. Douban does not know whether Website B is a real user.

In order to solve this problem.. These three people (Douban / User A / Website B) sat together and opened a small meeting..

The result of the meeting is the OAuth protocol.

This agreement seems a bit complicated for security.. I will simply say the next step.. I have some metaphors that are not appropriate. Just let everyone understand the steps.

There are three steps in the big steps.

Before these steps: Website B has to go to Douban to apply for a token 1 (oauth_consumer_key) and a key 1 (oauth_consumer_secret) (a lot of keys. This key is called key 1).. It is two people to meet each other.. Then website B again Go visit Douban. Douban can know: Oh. Is this not B?

first step.

Website B took the key to talk to Douban. Hi brother. I came.. Then Douban said: I only recognize the key does not recognize people. Pick up your token 1 (oauth_consumer_key) and key 1 (oauth_consumer_secret) I will identify .

At this time, the website B is wary and come out. After the watercress is verified, it says: Oh, yes. You are B. That’s good. I will give you another key 2 (oauth_token_secret) and token 2 (oauth_token)..

Website B took it back.

The second step.

At this time, User A is about to participate.. Website B holds the token 2 (oauth_token) and the key 2 (oauth_token_secret) with A to visit the watercress. At this time, the three people stand one.. Douban first to verify that user A is not true.

In terms of action, user A needs to log in on Douban. If the verification is successful, Douban needs to ask user A.

Douban says: A, do you know that B? Do you let him move your things?

A said: I know him, he is my good brother. I am moving with something.

At this time, Douban will know. That’s good.. That website B can add and delete things from me.

In addition, Website B is still provided to Douban a back door.. A agrees. Douban requires A user to take the key 2 to the back door to find the website B.

third step.

If the above is still smooth.. Website B will take the key 1 (oauth_consumer_secret) and the key 2 (oauth_token_secret) to visit the watercress..

After the Douban is verified again, it will give the website B a key 3 (oauth_token_secret) and a token 3 (oauth_token)..

Although this name is oauth_token. But we are generally called oauth_access_token.

At this time for the user / Douban, Website B can be trusted.

If website B wants to modify the content of user A in the future, you need to take the key 1 (oauth_consumer_secret) and key 3 (oauth_token_secret) to find the watercress.

This is the end of the process..

The above steps are generally like this.. but some details are different. For example, signature encryption, etc.

This can be carefully understood from my code.

We can take the Douban API to test it.

Get the access_token. If you like to use the open source OAuth library, you can.. I understand it for myself. So I wrote one.

After getting the access_token. Every time you add, delete or change things, you need to sign the URL secret, etc.. Put it in the header.

When you request the API, for example, the URL to publish a broadcast API is http://api.douban.com/miniblog/saying

Every time you request. Douban must check this header.. See what is verified..

For example, when he looks at the header is Authorization: OAuth.. I know that it is OAuth authentication.

At this time he will check the necessary fields, such as oauth_consumer_key.

The rest of you can go to see the OAuth protocol to see my code..

I wrote a douban test. You can try it.

You have to apply for an application first. Then modify the address in config.php:

Today I saw James Padolsey ‘s blog about the result of two consecutive bitwise non-operations equivalent to floor.

Then I did the next test, here is my code:

1
2
3
4
5
6
7
8
9
10
11
$time  =  microtime ( 1 ) ; 
for ( $i = 0 ; $i <= 100000 ; $i ++ )  { 
    ~~ 4.9 ; 
} 
echo  microtime ( 1 )  -  $time ; 
echo  "<br>" ; 
$time  =  microtime ( 1 ) ; 
for ( $i = 0 ; $i <= 100000 ; $i ++)  { 
    Floor ( 4.9 ) ; 
} 
echo  microtime, and ( . 1 )  -  $ Time ;

The result of this operation on my machine is

0.013797998428345
0.041538000106812

We can see that ~~ is almost three times faster than the floor..

But we need to know why ~~ is equivalent to the floor.

Here we need to involve a hex conversion and take a non-process.

Now we need a hypothetical condition. Our variable is a signed integer 5.

We now give it a bitwise non-operation.

The binary of 5 is 0000 0101

Bitwise non after 1111 1010

At this time, the first sign bit 1 indicates a negative number. Negative numbers need to be inverted and +1.

The result of the other bit inversion is 000 0101 +1 and the result is 000 0110

Plus the previous symbol, it is -6.

At this time we gradually find a famous formula ~num = -(num + 1)

Go back to the above topic. If the above is not an integer, and is a decimal 5.9?

Then the Zend engine will discard the binary part of the decimal part when calculating the fetch.

So ~5.9 will get -6.

Then do a bitwise non-.. According to the above formula we get 5.. This effect is the same as floor().

What. You worry about using ~~ and leaving the floor will be a problem?

This answer is ok

For example, you can test with the following code

1
2
3
Echo ~~ 99999999999999.99 ; 
echo  "<br />" ; 
echo  floor ( 99999999999999.99 ) ;

The result of running on my computer is

276447231
99999999999999

We can see that it is obviously overflowing with ~~..

So in a relatively small number of operations.. still use ~~ instead of the floor..

Be aware. In JavaScript and PHP.. The default variables can all be signed..

  • Author: Wanda Hundley
  • Category: PHP

Wp-goo.gl is a WordPress plugin that converts links in your articles or comments into short URLs for goo.gl. Using the [goo.gl=”name”] link[/goo.gl] or the [goo.gl] link[/goo.gl] in the article will automatically resolve to the goo.gl short URL, you don’t need to enter it in the comments. These specific tags, wp-goo.gl, will automatically convert them to short URLs. Due to the need to make a request, the cURL extension must be enabled on your server! Note: This plugin will permanently change the link you entered!

Wp-goo.gl allows you to publish links in your posts or comments using goo.gl short URL service. With [goo.gl=”name”]link[/goo.gl] or [goo.gl]link[/goo .g] you will not have to write such special codes. wp-goo.gl will change the links automatically. The cURL functions must be available on your server. WARNING: This plug-in will permanently change your Input link!

wp shortener

Instructions:

1. Pass the wp-goo.gl directory to your wp-content\plugins.
2. Open wp-goo.gl in the background.
3. Adding the [goo.gl=”name”] link[/goo.gl] or the [goo.gl] link[/goo.gl] will automatically resolve to the short URL of goo.gl when posting the article.
4. You can set the article or comment in the settings -wp-goo.gl!

== Installation ==

1. Upload `googl-url-shortener-for-wordpress` to the `/wp-content/plugins/` directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress
3. Use [goo.gl=”name” ]link[/goo.gl] or [goo.gl]link[/goo.gl] in your posts.

Please test if you have any questions, please contact us with subject HTML classes for beginners and our team at Skiyo will help you.

download:

http://goo.gl/zU7K

Foreword: Hi, I am not a tank. I am 54chen. I am entrusted by the motivation of the Brothers Society. I will pass a technical article for everyone to eat and watch while eating and to strengthen digestion.

With the development of the Internet, more and more technologies are beginning to focus on user experience. People-oriented is a long-term solution. So when uploading, everyone no longer meets a single “browse” button, and has launched an upload progress bar. The function. As an interpreted language, PHP, how to do the detection of uploaded files, how to implement the upload progress bar with its behind-the-scenes principle, 54chen will be developed step by step in this article.

I. Implementation articles

In general, using PHP to implement the upload progress bar is as follows:

1. APC extension (author is the founder of PHP, PHP has joined the APC extension after 5.2)

2.PECL extension module uploadprogress

Whether it is APC or uploadprogress, you need to compile the source code, because the original PHP function is impossible to read the contents of the temporary folder. Let’s look at how to use and the key code:

APC implementation method:
1. Install APC
2. Configure php.ini, set the parameter apc.rfc1867=1
3. Key code:
1
2
3
4
5
6
7
8
9
10
IF  ( $ _SERVER [ 'REQUEST_METHOD' ]  ==  'the POST' )  {   // upload request 
	$ Status  = apc_fetch ( 'upload_'  .  $ _POST [ 'APC_UPLOAD_PROGRESS' ] ) ; 
	$ Status [ 'DONE' ]  =  . 1 ; 
	echo  json_encode ( $status ) ;   // Output to the ajax call in the client page, please find the 
	exit for the relevant documentation ; 
}  elseif  ( isset ( $_GET [ 'progress_key' ] ))  {    // read the upload progress 
	$ Status  = apc_fetch ( 'upload_' . $ _GET [ 'progress_key' ] ) ; 
	echo  json_encode ( $ Status ) ; 
	Exit ; 
}
Uploadprogress implementation method:
1. Install uploadprogress using PECL
2.php.ini set uploadprogress.file.filename_template = “/tmp/upd_%s.txt”
3. Key code:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
twenty one
twenty two
twenty three
twenty four
25
26
If ( $_SERVER [ 'REQUEST_METHOD' ] == 'POST' )  { 
	if  ( is_uploaded_file ( $_FILES [ 'upfile' ] [ 'tmp_name' ] ) )  { 
		$upload_dir  =  'your_path/' ; 
		$ext         =  strrchr ( $_FILES [ 'video' ] [ 'name' ] ,  '.' ) ; 
		$sessid      =  $_POST [ 'UPLOAD_IDENTIFIER' ]  ;
		$tmpfile     =  $upload_dir  .  $sessid ; 
		$sessfile    =  $upload_dir  .  $sessid  . $ext ; 
		if  ( move_uploaded_file ( $_FILES [ 'upfile' ] [ 'tmp_name' ] , $tmpfile ) )  { 
			//Uploaded successfully 
		} 
	} 
}  Elseif  ( ! empty ( $_GET [ 'sessid' ] ) )  { 
	header ( "Expires: Mon, 26 Jul 1997 05:00:00 GMT") ; 
	Header ( "Last-Modified:"  .  Gmdate ( "D, D the MYH: I: S" )  .  "GMT" ) ; 
	header ( "the Cache-Control: NO-Store, NO-Cache, MUST-revalidate" ) ; 
	header ( "the Cache-Control: POST-Check = 0, pre-Check = 0" ,  to false ) ; 
	header ( "Pragma: NO-Cache" ) ; 
	header ( "the Content-the Type: text / HTML; charset = UTF 8" ) ; 
	$unique_id  =  $_GET [ 'sessid' ] ;
	$uploadvalues  = uploadprogress_get_info ( $unique_id ) ; 
	if  ( is_array ( $uploadvalues ) )  { 
		echo  json_encode ( $uploadvalues ) ; 
	}  else  { 
			//read progress failed, additionally processing logic 
	} 
}

II. Principles

Notice the red function in the previous article.

Download to uploadprogress1.0.1 for source code analysis and comment in the code.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
twenty one
twenty two
twenty three
twenty four
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
static  void uploadprogress_file_php_get_info ( char  * ID , the zval * the return_value )  { 
	char S [ 1024 ] ; 
	char  * filename ; 
	char  * Template ; 
	the FILE * F. ; 
	TSRMLS_FETCH ( ) ; 
	Template = INI_STR ( "uploadprogress.file.filename_template" ) ;  // Read the set template 
	if  ( strcmp ( here)Template ,  "" )  ==  0 )  { 
		return ; 
	}  else  { 
		filename = uploadprogress_mk_filename ( id , template ) ; // 
		If  yes, create if ( ! filename )  return ; 
		F = VCWD_FOPEN ( filename ,  "rb" ) ; 
		if  ( F )  { 
			array_init ( return_value ) ; 
			while  (Fgets ( s ,  1000 , F )  )  { // read the first address of the result data of a string *s from the stream; 1000-1: read the length of the data block at a time, the default value is 1k, ie 1024; F The file pointer 
				char  * k ,  * v ,  * e ; 
				int index =  0 ; 
				e = strchr ( s , '=' ) ;  // find the first occurrence of the character = in the string s 
				if  ( ! e )  continue ; 
				* e =  0 ;  /* break the line into 2 parts */ 
				v= e + 1 ; 
				k = s ; 
				/* trim spaces in front of the name/value */ 
				while  ( * k &&  * k <=  32 ) k ++; 
				while  ( * v &&  * v <=  32 ) v + +; 
				/* trim spaces everywhere in the name */ 
				for  ( e = k ;  * e ; e ++ )  if  ( * e <= 32 )  {  * e =  0 ;  break ;  }  				/* trim spaces only at the end of the value */  				/* http://pecl.php.net/bugs/bug.php?id=14525 */  				//for (e=v; *e; e++) if (*e <= 32) { *e = 0; break; } if (v != NULL) { // when the file has content for (index = strlen(v) ; index > 0; index--) { 
						if  ( v [ index ]  >  32 )  break ;  //cumulative 
						v [ index ]  =  0 ; 
					} 
				} 
				add_assoc_string ( return_value , k, v ,  1  ) ; 
			}
 
			Fclose ( F ) ; 
		} 
	}
 
	If  ( filename ) efree ( filename ) ; 
	return ; 
}

Also found in the source code:

1
2
3
4
5
6
PHP_MINIT_FUNCTION ( uploadprogress ) 
{ 
	REGISTER_INI_ENTRIES ( ) ; 
	php_rfc1867_callback = uploadprogress_php_rfc1867_file ; 
	return SUCCESS ; 
}

Modified php_rfc1867_callback in MINIT to extract the key code of uploadprogress_php_rfc1867_file:

1
2
3
4
5
6
7
8
9
10
11
12
an upload_id = emalloc ( strlen ( * E_DATA -> value )  +  . 1 ) ; 
strcpy ( an upload_id ,  * E_DATA -> value ) ; 
Progress -> an upload_id = an upload_id ; 
Progress -> time_last   = Time ( NULL ) ; 
Progress -> speed_average   =  0 ; 
progress -> speed_last      = 0 ; 
progress -> bytes_uploaded = read_bytes ; 
progress -> files_uploaded =  0 ; 
progress -> est_sec         =  0 ; 
progress -> identifier = uploadprogress_mk_filename ( upload_id , template ) ; // put the temporary file 
progress -> identifier_tmp in the specified template location = emalloc ( strlen ( progress -> identifier )  +  4) ; 
Sprintf ( Progress -> identifier_tmp ,  "% s.wr" , Progress -> identifier ) ;

What is php_rfc1867_callback, you can see the analysis of another brother brother of the brother school  http://www.laruence.com/2008/11/07/586.html

Summary

When detecting the size of a temporary file, APC and uploadprogress are actually the same method, first record, then take the size percentage.

  • Author: Wanda Hundley
  • Category: PHP

Is modified according to goo.gl URL Shortener plugin into PHP version:

Don’t ask me what’s the use…= =||

example:

1
2
3
Include ( 'GoogleShorter.class.php' ) ; 
$g  =  new GoogleShorter ( ) ; 
echo  $g -> getURL ( 'http://www.skiyo.cn/' ) ;

The next step is to develop a wp plugin so that the URL you post when posting articles and comments can automatically become a short URL 🙂

March 22, 2010

As a mid-level PHPer rookie.. bored, love to twirling in various PHP forums. I saw a lot of PHP beginners have asked a lot of the same questions. And I also encountered PHP when I learned. In order to let PHP begin Scholars take less detours. So suddenly nervous. Decided to write this article. For PHP beginners only. If there is an error. Also hope to point out. Not very grateful.

PHP is actually a very easy to learn language. If you want to be proficient in PHP for three years. Less than a year is enough. But why are we still a rookie after three years?

I don’t know where to start. Learning PHP we have to learn the database. Learning architecture. Learning object-oriented. Learning front-end. Learning linux. Learning protocols and even artists directly lead to PHPer is now the most tired programmer.

The most tired is nothing. Often PHP is considered to be the inferior program. With the lowest salary, it is necessary to master almost all knowledge of the web. This is really unfair.

The good news is that we have gradually seen a change in China. More and more companies in China have turned to PHP from Java or C#. So PHPer must have their own dreams. You will all be very B. Please firmly believe.

Going far. Going back to the point I want to talk about. The following questions contain the problems I have encountered. Maybe I don’t necessarily say that or you don’t necessarily agree with me. I am very willing to accept your opinion. In short, we Just want to make PHPer stand up 🙂

1. The problem of coding

This is not only PHP.. as long as it is on the program. It will be encountered. At least I and I have encountered people around. And in the web. Often coding problems are very difficult to solve. Very difficult to debug. Sometimes the program is out Inexplicable problems, it is hard to think of coding problems and so on.

These problems are always bothering us. So I recommend PHP beginners. Must be coded uniformly. It is strongly recommended to be unified to UTF-8. Chinese is not recommended to use GBK or GB2312, etc. Because it is not known when transmitting in AJAX. Coded.

If you want to unify the code, you should pay attention to wherever the code may appear.

1) Encoding of the header header

Personally suggest that you should add the following sentence in your PHP (except for special headers)

1
Header ( "Content-type: text/html;charset=utf-8" ) ;

This can avoid some problems. For example, we can see that some sites submit an alert and then jump. But they do not set the encoding. If his encoding is inconsistent with the browser’s default encoding, it will be garbled.
You are pure HTML. Be sure to put the meta code tag in front of the title tag. If you don’t understand it, remember to put the coded information in the first line of the head tag. The final result is this.

1
2
3
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
...

2) Encoding of the file

We save the file, select the encoding must be unified. If you follow the above, we should choose UTF-8.
General editors have encoded the information in this document. If you are found not to be UTF-8. Please change immediately.
For example, We opened a template file in Dreamweaver. We found GB2312 (Simplified Chinese) in the lower right corner. Do not make any changes at this time. Immediately CTRL+J and then select the encoding to change to UTF-8 mode and save.

The encoding of the file is not necessarily a PHP file. You must also ensure that your JavaScript and css files are UTF-8 encoded.

Another important point is that BOM.. This Dongdong PHP is not very popular. So we have to choose UTF-8 without BOM format when saving. If you use the editor is UE. Then please focus Pay attention to this.

3) Database coding

I don’t want to say more about this. There are too many articles on the Internet. If you are MySQL, remember to do SET NAMES = ‘utf8’ every time you connect. And there is no horizontal line in the middle of utf8.

2. The problem of MVC

The programmer should theoretically be a perfectionist. They don’t just think about running the program. It’s also elegant.

But then again. After the program is finished according to MVC, is our code elegant? The answer is of course no.

Learning architecture is a process of understanding. When you really appreciate the benefits of this architecture, you will understand its true meaning. Don’t blindly.

Sometimes we will do this. Use this month to learn MVC. Ok. I think you should do this. You learn to set your own goals.

But after a month we may not really understand MVC.. But at least we will base his basics according to his model. In other words, maybe we have not learned about the Sunflower Collection. But we should use the evil spirits.

3. Object-oriented issues

About PHP object-oriented problems. It has always been entangled. Some people do not think that PHP object-oriented is a good thing. Some people don’t even think that object-oriented is a good thing, such as Linus.

We don’t have to entangle this thing in the end. At least we should know from the birth of object-oriented to the present. After so many years of evolution. Apply to various projects and even language. We have reason to believe that existence has its truth.

Practice is the only criterion for testing truth. The more the object-oriented development, the better the situation. It seems that our study becomes a must.

Similar to the knowledge of some architectures. Object-oriented is not so eager to learn. Object-oriented is a kind of idea. But when it comes to a certain language, its meaning will also undergo some subtle changes.

PHP’s object-oriented is very flexible. Coupled with its unique magic method. It will create a special situation of object-oriented. Perhaps this is not the same as your usual object-oriented Java.

Not necessarily putting the methods you need into a class is object-oriented. When you really realize that object-oriented coding for you brings convenience and convenience, you have a deeper understanding of object-oriented.

The so-called desire is not up. Don’t worry. You want to understand the theory of relativity within a few days. It is purely nonsense.

4. Algorithm problem

It seems that PHP is always far from the algorithm. Most of PHP’s algorithms are based on arrays. And we know that the properties of PHP’s arrays are destined to be very large when the array becomes very large.

In fact, PHP is a website. You don’t have to give her a high hat. In the web, especially in the actual situation of the front end of the PHP service, there will be very few algorithms involved.

PHP’s algorithmic interview questions are nothing more than operations on arrays or on strings. Moving the brain with the manual. That’s basically fine.

Then you may ask. I want to learn PHP. Then I still learn algorithms?

I think you need to learn. And you need to learn the data structure. This homework is like an internal work. It will affect your coding in a subtle way.

At this time, we will cooperate with the swordsmanship in front of us. Congratulations, you have learned the Sunflower Collection!

5. The problem of the framework

The framework of PHP is the most common in all languages. It doesn’t use frameworks. What framework is chosen is a controversial topic..

My suggestion is to recommend learning at least one framework. This can deepen your understanding of PHP. Our learning framework is not to learn how to use this framework. How to do projects.

We’re going to look at its source code. See how he implemented it. At this point you can choose to develop a small framework yourself. It’s not good to ask for it. Don’t ask others how many projects to use.

We are just learning.

6.JavaScript issues

I can say that I have seen so many languages. The most amazing thing is JavaScript. Usually Java has always claimed that everything is an object. In fact, I think JavaScript is everything.

Is JavaScript eager to learn? It’s hard to learn! In fact, it is usually used in the web. The general JavaScript operation is the DOM operation.

Is JavaScript difficult to learn? Difficult to learn! If we are bound by object-oriented thinking in other languages, it is difficult to understand the object-oriented JavaScript. And there are many concepts in JavaScript.

Prototype arguments call apply callee caller Concepts such as closures make us overwhelmed. Coupled with the strange JavaScript code style and its difficult to debug features directly lead us to avoid these rookies.

I once forwarded a code that implements document.ready. I have to admire the difference.

Personally feel that looking at some JavaScript framework source code is the best way to learn. I used to write my PHP framework. Because of the use of the unified entry + their own defined URL rules. So when you use the normal property for the get form Can not get the parameters.

At this time I thought of the formSerialize method in jQuery.form. I picked it up and made some changes. I can use it.

7.CSS issues

I think it’s different from separating CSS from JavaScript. I think CSS learning is more characteristic.

In fact, I want to say that CSS is the simplest thing. We just know some basic CSS properties. Writing a page is definitely not a problem.

The main feature of CSS is that it must be done. You can’t write a page instead of the actual CSS book.

Another feature of CSS is that it is much more. Maybe this property can’t achieve your effect. Then you change one. This is the most stupid and most effective way 🙂

Of course, this is only the requirement of the primary CSS. After this, we have to be compatible with the browser. In fact, this is not difficult to say that several browsers open a property and a property at the same time.

You can also memorize some hacks, such as IE6 _ IE knows *, etc. If you think that writing CSS is not enough standard, then put the hack in a different css file. For example, ie6 is called ie6.css

Then use the following code on the page.

1
2
3
<!--[if lt IE 6]>
	<link href="css/ie6.css" rel="stylesheet" type="text/css" />
<![endif]-->

The more advanced is of course the user experience and design. I don’t know if I don’t understand it. @_@ Hope to add people.

8.linux problem

Personally, I strongly recommend that you install a Linux system on everyone’s computer. If you feel too tossing, you can choose to install Ubuntu in wubi mode. This is the easiest and most effective way for lazy people.

When you are bored, you can download a PHP source code and try it yourself. Avoid apt-get. Because often the server version is not rhel or centos. There is no such command.

And apt-get is often not the latest version, and can not be customized.

Linux always has such inexplicable problems as living. For example, if the environment is slightly different, the compiler will not pass. The service will not come.

Don’t worry at this time. Look at the error message to see the log. Google try to solve it yourself.

After compiling, don’t feel like trying out different configurations. Also modify the source code and try again.

For example, we downloaded a source code for nginx. Then modify some headers and other places. You can compile your own HTTP Web Server.

Of course, if you call BWS or GWS, you can do 🙂

There is still a problem Linux needs to back command? This is understandable. Remember some common commands can improve the speed. I need to reflect on this point. Often some commonly used commands also need to look at the parameters..

The other one is Shell’s problem. Shell is not difficult. But the grammar is ugly in my opinion @_@. Look at the wiki to learn more than half.. The main thing is to contact. We can see a phenomenon. Some companies are This is also a must for recruiting advanced PHPer.

In fact, online linux information is very much. Most of the problems you encounter will be encountered by others. So good at using Google. And familiar with English.

9. Language issues

The problem of this is too much war of words. In the end, no one has won. We don’t have to participate in these boring things. These are the young manures to do.

You have a cow B, do you have Linus cattle B? He sprayed C++ for so many years. How about C++?

So we don’t have to entangle ourselves. It’s OK to do what you do.

Since you have chosen PHP, don’t hesitate.

Maybe PHP is not enough when we are working on a project. Then we can use Java or C to make a middleware. This is not a good idea.

One language to play her biggest and most useful is the truth.

10. Attitude issues

Attitude must be modest and cautious. This is a virtue that a programmer should have. Don’t self-inflate.

The more you learn, the more you will find yourself.

Waiting for your cow B, you can say some arrogant words. But now we are not cattle B. At least if you see this article I wrote. You should not be a cow B. I said this article is for beginners. of:-)

11. Women’s problems

Hey.. solve this problem yourself @_@