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This article introduces how PHP implements 301 permanent redirection to direct a domain name without www to a domain name with www. When your site domain name changes or the webpage address changes (the webpage storage directory or the webpage file name changes), how can you ensure that the site's traffic from search engines will not be lost during the transition period, can I update the webpage address in the search engine results? 301 redirection is an ideal solution to this problem. It can di

PHPurl encryption and decryption functions. PHPurl encryption and decryption function base64_encode syntax: stringbase64_decode (stringdata); * $ encoding; defines the string echobase64_decode ($ str); www.111 PHP url encryption and decryption function Base64_encode syntax: string base64_decode (string data );*/ $ Str = 'd3d3ljexmwnulm5ldnk7vtu9zlpmzfg = '; // define a stringEcho base64_decode ($ str); // www. bKjia. c0m 1. Jucheng // output the deco

Among the three jquery ajax pages, we use the jqurey paging plug-in directly and write the code in the source ecosystem. At the same time, each instance has its own source code. I hope it will help you. Example 1 The core code is as follows: The Code is as follows: Copy code $. Ajax ({Url: url,DataType: 'json ',Data: data,Success: callback}); Can refer to the jquery official website PAI http://api.jquery.com/jQuery.getJSON/ The Code is as follows: Copy

function setUrlList ($ list = array ()){$ This-> url_list = $ list;}/** Set parameters* @ CutPot array*/Public function setOpt ($ cutPot ){$ This-> curl_setopt = $ cutPot + $ this-> curl_setopt;}/** Execution* @ Return array*/Public function execute (){$ Mh = curl_multi_init ();Foreach ($ this-> url_list as $ I => $ url ){$ Conn [$ I] = curl_init ($ url );Foreach ($ this-> curl_setopt as $ key => $ val ){Curl_setopt ($ conn [$ I], preg_replace ('/(CURLOPT_w {1,})/ie',' $ 0', $ key), $ val );}Cu

already exists. The syntax is as follows: Bool isset ($ _ SESSION ['session _ name']) For example: The Code is as follows: Copy code Session_start ();If (isset ($ _ SESSION ['keyword'])Echo $ _ SESSION ['keyword'];ElseEcho "www. bKjia. c0m ";?> Result: Php The usset function is used to deregister a created session variable. Syntax: Unset ($ _ SESSION ['session _ name']) For example: The Code is as follows:

There are many ways to delete an array of empty elements. I will introduce two classic methods today. One is to use the array_filter function, and the other is to use the function to call a custom function. The Code is as follows: Copy code $ Str1_array = array ('one-click tutorial net', '', 'HTTP: // www. bKjia. c0m','', '123 ','');$ Str1_array = array_filter ($ str1_array );Print_r ($ str1_array );?>ResultArray([0] => yijuche

The strtotime () function is a php date function. This problem occurs when the date. timezone in php. ini is not set. You only need to configure the time zone. At the beginning of php5.1.0, the date. timezone option is added to php. ini, Which is disabled by default. The display time is Greenwich Mean Time, which is exactly eight hours different from that in Beijing. Solution: Modify the php. ini file and search for the file; date. timezone =. Remove the semicolon before and add the time zone af

The 301 jump tells the visitor that the page has always reached a new page. in php, we use the 301 jump function to send the 301 status code to the browser, and then implement the page Jump. PHP code-only jump The Code is as follows: Copy code Header ("Location: http://www.bKjia. c0m /");?> However, the returned status code is 302. If you want to achieve 301 redirection, you need to set the status code before

In php, there is only one method for page Jump, that is, using the header (location: $ go_url); To achieve page jump, I will give you a detailed introduction. Php header () page Jump I migrate the blog from http: // www. your domain name/blog to the http://www.bKjia. c0m domain name, when the user visits the previous blog address, automatically jump to the corresponding article of the current blog The Code is as follows: Copy code

In php, The substr (), mb_substr (), and mb_strcut functions are character truncation functions. However, when substr intercepts Chinese characters, garbled characters are generated, and the two support Chinese truncation. I will introduce them below. Substr () function Substr (string, start, length) String indicates the object to be intercepted, start indicates the starting position, 0 indicates the starting point, positive number indicates the position after the number, and negative number ind

|+ ----------- +1 row in set 3. view some other instances The Code is as follows: Copy code Mysql> select substring ('quadratically ', 5 );-> 'Ratically'Mysql> select substring ('foobarbar' FROM 4 );-> 'Barbar'Mysql> select substring ('quadratically ', 5, 6 );-> 'Ratica'Mysql> select substring ('sakila',-3 );-> 'Ila'Mysql> select substring ('sakila',-5, 3 );-> 'Aki'Mysql> select substring ('sakila' FROM-4 FOR 2 );-> 'Ki' Now, let's take a look. Substring_in

and separate them with spaces. if you only search for a keyword, for example, "big"Garbled characters are displayed ...... ^ | _ | ^, The result of the following code: Use a space character to separate keywords The code is as follows: $ Key = explode ('', $ _ GET [keyWord]); If you want to improve the performance, you need to make a judgment later. Conclusion, The keyword highlighted above is just a very simple one. we have highlighted the keyword str_replace, i

PHP uses curl to obtain the verification code (sending a cookie for secondary capture ). The powerful curl function in php may not be available yet. next I will introduce an instance used in the work to obtain the verification code using curl and create a cookie. the code below copies the powerful curl function in php, which may not be available to anyone. next I will introduce an instance used in the work to obtain the verification code using curl and create a cookie. The code is as f

Php can be used to obtain the file suffix. I have talked a lot about how to get the extension name of a file. Today, we will summarize how to use different functions to obtain the extension name. if you need it, refer to section 1, I have talked a lot about how to get the file extension in php before. today we will summarize how to use different functions to obtain the extension. if you need it, please refer to it. One, php explode function, function usage reference http://www.bKjia.

+ ([-.] w +) */; // Match EmailIf (email = ''|! Preg. test (email )){$ ("# Chkmsg" cmd.html ("Enter the correct email address! ");} Else {$ ("# Sub_btn"). attr ("disabled", "disabled" ).val('submit..'hangzhou.css ("cursor", "default ");$. Post ("sendmail. php", {mail: email}, function (msg ){If (msg = "noreg "){$ ("# Chkmsg" cmd.html ("This email has not been registered! ");$ ("# Sub_btn"). removeAttr ("disabled"). val ('submit your CSS ("cursor", "pointer ");} Else {$ (". Demo" ).html ("" + ms

PHP code 301 jump page instance. The 301 jump tells the visitor that the page has always reached a new page. in php, we use the 301 jump function to send the 301 status code to the browser, then, the page jump 301 will tell the visitor that the page has always arrived at a new page. in php, we use the 301 redirect function to send the 301 status code to the browser, then you can jump to the page. PHP code-only jump The code is as follows: Header ("Location: h

search engine significantly reduced its trust in the website. -- This problem exists in many websites: The 404 page returns the 200 or 302 status code instead of the 404 status code.Therefore, the following code is added in the 404. aspx file: The Code is as follows: Copy code Protected void Page_Load (object sender, EventArgs e){Response. Status = "404 Not Found ";} By using httpwatch, we can find that 404 status code is returned correctly when you access a page

Before discussing the json format, let's briefly recall the XML. XML is short for "Extensible Markup Language". It provides a method to define a series of data transmission protocols on the Web, which is text-based, it is hailed as "an ideal way to fully develop the potential of the Internet and Web ". Asp tutorial. net ajax json getting started tutorial and detailed instance json Introduction Before formally discussing the json format, let's briefly recall the xml. Xml is short for "Extensible

PHP implements 301 permanent redirection. This article introduces how PHP implements 301 permanent redirection to direct a domain name without www to a domain name with www. When your site domain name changes or the webpage address changes (this article describes how to implement 301 permanent redirection in PHP to direct a domain name without www to a domain name with www. When your site domain name changes or the webpage address changes (the webpage storage directory or the webpage file name c

follows: $ Pangbu = "pangbu "; Function demo (){ Global $ pangbu; Echo $ pangbu;} Demo ();?> Explanation In fact, global $ pangbu; is short for $ pangbu = $ _ GLOBAL ['pangbu, $ Pangbu is a reference of $ _ GLOBAL ['pangbu ']. As for how to use the reference, $ pangbu is used.Some of your own notesI have never understood the usage of global before. although I can use it, I have been confused in Zookeeper. now I finally understand it.. For more information about Glo