PHP encryption algorithm for the realization of reversible encryption algorithm and decryption sharing _php instance

The encryption algorithm is as follows: Copy Code code as follows: function Encrypt ($data, $key) { $key = MD5 ($key); $x = 0; $len = strlen ($data); $l = strlen ($key); for ($i = 0; $i { if ($x = = $l) { $x = 0; } $char. =

PHP encrypted 3DES error call to undefined Function:mcrypt_module_open () How to resolve _php instance

I am also a novice php, through the W3cschool understand the basic principles of PHP after the write. But still a rookie. First regardless of the 3DES encryption method is correct, the method is online, in the run when a mistake, the younger

PHP grab the user of Taobao products comments + photos + Search Items List Instance _php instance

It's a curious thing to say about this function. Some time ago in doing a Amoy site, think of whether you can crawl to Taobao merchandise buyers show it? After some toss and find, Taobao Commodity user evaluation information is through Ajax to

A _php instance of retention variable usage analysis in PHP template engine Smarty

This example describes the use of reserved variables in the PHP template engine smarty. Share to everyone for your reference, specific as follows: In Smarty, there are some retention variables that can be used directly without the need for PHP

PHP use Baidu Translation API sample share _php instance

Baidu Translation API PHP code, testing can be achieved, but the English translation may need to convert the code. Copy Code code as follows: function language ($value, $from = "Auto", $to = "Auto") { $value _code=urlencode ($value);

PHP PDO function library (PDO functions) 1th/2 page _php tips

Compared with ADODB and MDB2, PDO is more efficient. For now, implementing the "Database Abstraction Layer" is a great way to go, and using a database access abstraction layer like PDO is a good choice. Pdo->begintransaction ()-Indicates rollback

PHP file upload function to achieve code _php skills

Personally think php file upload and download the idea is almost the same. That is, one more header statement in the code The following are detailed code. For reference only. Entry file Copy Code code as follows: Enctype= "Multipart/

Call WordPress function Statistic article traffic and the implementation of PHP native counter _php instance

1. First introduces WordPress's two powerful plug-ins: (1) Count per day is a very powerful number of visitors statistics plug-ins, can be counted daily, yesterday, weekly, monthly and so on the number of visitors (based on IP statistics),

A comprehensive interpretation of the log function in the YII framework of PHP _php tips

yii

Yii page-level log Openin main.php, the log segment is added,The following shows the page log array (' class ' => ' Cweblogroute ', ' Levels ' => ' trace ',//level for trace ' categories ' => ' system.db.* '/ Displays only information about the

Use PHP's Ob_start () to control your browser cache_php tips

Output control functions do not use header () or Setcookie (), send header information to affect, only for those similar to echo () and PHP code blocks of data have effect. Let's start with a simple example that gives you a general impression of

Introduction and use of URL functions in php example _php instance

Base64_encode-uses MIME base64 to encode dataBase64_encode () returns uses Base64 to encode data. This encoding is designed to enable binary data to be transmitted through a 8-bit transport layer, such as the body of an e-mail message.base64-encoded

PHP implementation Download limit speed sample Share _php instance

Copy Code code as follows: Local file, should be send to the client $local _file = ' test-file.zip '; filename that the user gets as default$download _file = ' your-download-name.zip '; Set the download rate limit (=> 20,5 kb/s)$download

PHP implementation of infinite-level classification query (recursive, non-recursive) _php skills

Do PHP for such a long time, found that the background management system is not a small application module is the classification of columns, the general situation of the column to be made is infinite class, that is, each column can theoretically add

PHP does not use Plug-ins to export Excel's Simple method _php instance

Copy Code code as follows: $filename =date ("Y-year m-month D-Day"). "     Data information statistics results. xls "; Filename $ua = $_server["Http_user_agent"]; Chinese filename is not garbled if (Preg_match ("/msie/", $ua)) { $filename

PHP implements Word to turn HTML method _php skill

The example in this article describes how PHP implements word-turn HTML. Share to everyone for your reference, specific as follows: For the perfect solution, office to convert PDF or HTML, preferably with Windows Office software, LibreOffice not

About the problem of too many session files in PHP and the location of the session file Save _php instance

PHP default mechanism: Every time PHP request, there will be 1/100 probability (the default) trigger "session recycling." If "Session recycling" occurs, the/tmp/sess_* file is checked, and if the last modification time is now more than 1440 seconds (

Analysis and research of PHP process lock-in problem _php skills

1. Distinguish between read lock and write lock.If you use a write lock every time, it is not efficient to queue up multiple processes to read a file.2. Distinguish between blocking and non-blocking modes.In general, if a process is writing a file,

Share PHP Mail Manager source code _php Tips

This article for everyone to provide the PHP Mail Manager source code, I hope you like.1. Demand AnalysisAdministrators should be able to create and modify message content.Administrators should be able to send text or HTML-formatted news messages to

Introduction to Custom menus in WordPress development related PHP function usage _php tips

function meaningWp_nav_menu ()Custom menu Display function Register_nav_menu ()Custom menu Registration Function-singular Register_nav_menus ()Custom Menu Registration function – Complex number (a complex form of a pain in the egg) The following

PHP Common class finishing _php skill

Chart Gallery The following class libraries make it easy to create complex diagrams and pictures. Of course, they need the support of the GD library. Pchart-a library in which you can create statistical charts. Libchart-This is also a simple

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