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function randomkeys($length)
{
 $key='';
 $pattern='123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
 for($i=0;$i<$length;$i++)
 {
   $key .= $pattern{mt_rand(0,47)}; 
       
  }
  return $key;
 } 
 echo randomkeys(20);


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VC9 °æ±¾ÊÇʹÓà Visual Studio 2008 ±àÒëÆ÷±àÒëµÄ£¬Èç¹ûÄãµÄ PHP ÊÇÓà IIS À´¼ÜÉèµÄ£¬ÄÇÄã¾ÍÑ¡Ôñ VC9 °æ±¾¡£
¶þ¡¢ÈçºÎÑ¡Ôñ PHP5.3 µÄ Thread Safe ºÍ Non Thread S ......

phpÔ¶³Ì»ñȡͼƬ

<?php
//
// Function: »ñȡԶ³ÌͼƬ²¢°ÑËü±£´æµ½±¾µØ
//
//
// È·¶¨ÄúÓаÑÎļþдÈë±¾µØ·þÎñÆ÷µÄȨÏÞ
//
//
// ±äÁ¿ËµÃ÷:
// $url ÊÇÔ¶³ÌͼƬµÄÍêÕûURLµØÖ·£¬²»ÄÜΪ¿Õ¡£
// $filename ÊÇ¿ÉÑ¡±äÁ¿: Èç¹ûΪ¿Õ£¬±¾µØÎļþÃû½«»ùÓÚʱ¼äºÍÈÕÆÚ
// ×Ô¶¯Éú³É.
function GrabImage($url,$filename="") { ......

ÎÒµÄphpÑéÖ¤ÂëÀà


<?php
/*
 * Created on 2010-3-11
 * author:zhangfei
 *ÎÒµÄÑéÖ¤ÂëÀà
 */
 session_start();
 class Check_Class{
  public $h_img ;
public $c_back ;
public $c_front ;
//¹¹Ô캯Êý
function Check_Class(){
$h_img  =  imagecreate(100,30);
......

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fedoraÏÂphp»·¾³.txt

°²×°mysql
==================
1.yum install mysql*
2.Æô¶¯:/sbin/service mysqld start
°²×°php
=================
1.yum install php
2.²é¿´php°²×°Ä¿Â¼:whereis php
°²×°lighttpd
=================
1.yum install lighttpd
2.yum search lighttpd(¼ì²âlighttpdûÓб»°²×°µÄÒÀÀµ°ü)
3.yum install lighttpd ......
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