PHP Tutorials

/** * PHP des encryption and decryption * by http://bbs.it-home.org */ function Do_mencrypt ($input, $key) { $input = Str_replace ("" N "," ", $input); $input = Str_replace ("" T "," ", $input); $input =

$str = "I am Levin"; $key = "123qwe.019860905061x"; $cipher = mcrypt_rijndael_128; $mode = MCRYPT_MODE_ECB; $iv = Mcrypt_create_iv (Mcrypt_get_iv_size ($cipher, $mode), Mcrypt_rand); echo "Original:" $str. "

/* @ system parameter probing LINUX @Edit bbs.it-home.org @date 2013/5/8 */ function Sys_linux () { Cpu if (false = = = ($str = @file ("/proc/cpuinfo"))) return false; $str = Implode ("", $str);

This article describes, in PHP settings, use, deletion of cookies, and some restrictions on cookies related content, there is a need for friends, can refer to.1. set cookies to set cookies in PHP and use the Setcookie function. Note: Cookies are

To introduce a simple PHP write counter, the number of visits written into the library, where to display the call. is a good example of getting started.Database: DB table: Numname user jb123 Access count IP visit ipnew number of visitsThe code is as

$url = ' http://xxxx.com '; $hander _array = get_headers ($url); if ($header _array [0] = = ' http/1.1 OK ') { echo ' file exists '; } else { Echo ' file does not exist '; } Copy CodeDescription: Get_headers

$STR 1 = null; $str 2 = false; echo $str 1== $str 2? ' Equal ': ' Not equal '; $str 3 = "; $str 4 = 0; Echo $str 3== $str 4? ' Equal ': ' Not equal '; $str 5 = 0; $str 6 = ' 0′; echo $str 5=== $

For you to introduce the next PHP session how to achieve cross-domain and cross-server sharing of the solution, the need for friends, you can refer to the next.In addition to ASP., all sessions must be reserved with session ID. The main location of

--> IFrame Local Refresh _bbs.it-home.org if (Isset ($question) &&!empty ($question)) { } ?>?

For everyone to introduce a can delete the specified directory n days before all the files of the PHP code, the need for friends, you can refer to the next.The code is as follows: $n) unlink ($fullpath); Delete File }}} }

PHP filters $_get and $_post parameters to prevent injected code, there are friends in need, can refer to below.The complete code is as follows. $value) {if (!is_array ($value)) {$value = GET_MAGIC_QUOTES_GPC ()? $value: Addslashes ($value);

A good FTP operation class, you can complete the copy, move, delete files, create directories and other operations, the need for friends, you can refer to the next.1. FTP Operation class conn_id = @ftp_connect ($FTP _host, $FTP _port) or Die

This article introduces the PHP programming based on the most commonly used two functions isset and empty, to give a few examples, for everyone to learn the reference.In the basic PHP programming, the most commonly used two functions, isset and

/** * Alternative functions for Json_encode * Edit bbs.it-home.org */ function Jsonencode ($var) { if (function_exists (' Json_encode ')) { Return Json_encode ($var); } else { Switch (GetType ($var)) {

$mail->addattachment ($attach, $attach); Copy CodeSending past attachment filenames will be garbled if not specified: $mail->addattachment ($attach, $attach); Copy CodeSent in the past

In this paper, the use of regular expressions in PHP to match the character of the method, there is a need for friends, refer to learning it.1, the character for a single character, usually in the literal sense, the character indicates that the

This article introduces, in PHP, with the help of Crontab, the method of automatic operation of related programs, the need for friends, refer to it.The crontab-operates the daemon for each user and the schedule for that execution. Some of the

/** * Verification Code Class * Edit bbs.it-home.org */ Class Validationcode { Private $width; Private $height; Private $codeNum; Private $image; Image Resources Private $disturbColorNum; Private

This article introduces the relevant knowledge of the system variables and environment variables in PHP, the need for friends, you can refer to learning.In daily PHP programming, there are times when changes to system variables and environment

Define (' dir_php_exec ', ' PHP '); Define (' Dir_main_exec ', __file__); Define (' dir_tmp ', '/tmp '); Require_once (' my_process.php '); Class PP extends My_process_base { Public function run ($param = null) {