PHP

The following code implements the $_get and $_post parameters for filtering PHP The code is as follows Copy Code /*** Security Precautions*/function add_s ($array){foreach ($array as $key => $value){if (!is_array ($value)

1, login into the VPS Control Panel, ready to reboot the VPS at any time.2, shut down the Web server first, too much load will cause the subsequent operation is difficult, or even directly unable to login SSH.3, just in case, the setting of the Web

Instance 1 The code is as follows Copy Code Function Encode_file_contents ($filename) { $type =strtolower (STRRCHR ($filename, '. '), 1); if (' php ' = = $type && is_file ($filename) && is_writable ($filename)) {//If

The code is as follows Copy Code ?/*************************DescriptionDetermines whether the passed variable contains illegal characterssuch as $_post, $_getFunction:Anti-injection*************************/Illegal characters to

The code is as follows Copy Code Public Function Captcha () {$font _dir = $_server ["Document_root"]. "Your_ttf_file.ttf"; Font Library$img _w = 58; Set Picture width$img _h = 20; Set Picture height$font _size = 11; Font size$angle _

The code is as follows Copy Code The code is as follows:/* Site Verification Code Program* Operating Environment: PHP5.0.18 Debugging through* Need GD2 Graphics library support (Php_gd2.dll Open in php.ini)* FileName: showimg.php*

The first is to use the verification code, others manually brush the ticket, or even the site to spend hundreds of of dollars to buy a verification code recognition programLimit IP address, unplug the network cable on the IP, Taobao 2 dollars can

We just need to add in the PHP tutorial. ini Disable_functions =phpinfo PHP.ini introduces a feature disable_functions, which is useful and can be used to disable some functions. For example, in php.ini, add disable_functions = PassThru exec

PHP tutorial prevents SQL injection code */ function Inject_check ($sql _str) {//Prevent injection $check = eregi (' select|insert|update|delete| ' | /*|*|.. /|. /|union|into|load_file|outfile ', $sql _str); if ($check) { echo "Enter illegal

/*************************DescriptionDetermines whether the passed variable contains illegal characterssuch as $_post, $_getFunction:Anti-injection**************************/Illegal characters to filter this filtered character can also be

Since registering often uses the registration code to prevent the machine from malicious registration, here I publish a PNG image verification code basic images, very simple but the idea is very clear:1, produce a picture of PNG2. Set the background

The code is as follows Copy Code function _strips Tutorial Lashes ($string) {if (Is_array ($string)) {foreach ($string as $key => $val) {$string [$key] = _strips Tutorial Lashes ($val);}} else {$string = Stripslashes

 0)  {            if  (Ord substr ($ str,  $cind,  1)    $value)  {         $unicodestr .=  $prefix  .  base_convert (Bin2Hex (iconv (' utf-8 ',  ' UCS-4 ',  $value)),  16, 10)   $postfix;          return  $unicodestr; /** *  $str  unicode encoded

This is a tricky issue when users submit a form because of the speed of the network or if the Web page is maliciously refreshed, causing the same record to be repeatedly inserted into the database. We can start with the client and server side to try

PHP Code: $fileName = $_files[' afile ' [' name '];$fileType = $_files[' afile '] [' type '];$fileContent = file_get_contents ($_files[' afile '] [' tmp_name ']);$DATAURL = ' data: '. $fileType. '; Base64, '. Base64_encode ($fileContent); $json =

The PHP implementation Method is in the interface, post delivery mode, the data is transmitted as a string, and the returned data is encapsulated with JSON. and then start a variety of tests. Sharing the final method: defines a crawl

Suppose the PHP directory is/usr/local/phpMySQL directory for/usr/local/mysql1. Enter the PHP source code package EXT/PDO Directory CD Ext/pdo 2. Execute/usr/local/php/bin/phpize[assume that the installation directory for PHP is/usr/local/php]

1. Install Phpize (if it is compiled with PHP source code is free, itself) 2. Open the PHP source code, EXT has Ext_skel tools, use it can be convenient ./ext_skel--extname = Myext After you build the extended framework, you need to

Php creates a solution for remembering the password for automatic login, that is, to operate sessions and cookies.// Check whether the user logs on The code is as follows:Copy code Function checklogin (){If (empty ($ _ SESSION ['User _ info']) {/

1. Download memcache and put it to your drive letter, for example, d: memcached.2. Start-> cmd-> enter the command d: memcachedmemcached.exe-d install3. Enter d: memcachedmemcached.exe-d start after installation.4. Download php_memcache.dll and put