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$data1 = $_POST['aaa'];
$data2 = implode(file('1.txt'));
if(get_magic_quotes_gpc()){
      //°ÑÊý¾Ý$data1Ö±½ÓдÈëÊý¾Ý¿â (×Ô¶¯×ªÒë)
}else{
      $data1 = addslashes($data1);
      //°ÑÊý¾Ý$data1дÈëÊý¾Ý¿â£¬Óú¯Êý(addslashes()תÒë)
}
if(get_magic_quotes_runtime()){
      //°ÑÊý¾Ý$data2Ö±½ÓдÈëÊý¾Ý¿â(×Ô¶¯×ªÒë)
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}else{
      $data2 = addslashes($data2);
      //°ÑÊý¾Ý$data2дÈëÊý¾Ý¿â
//´ÓÊý¾Ý¿â¶Á³öµÄÊý¾ÝÖ±½ÓÊä³ö
}
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get_magic_quotes_gpc():
²é¿´magic_quotes_gpcÖµ.0=¹Ø±Õ.1=´ò¿ª.
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<?php
/*
 * Created on 2010-3-11
 * author:zhangfei
 *ÎÒµÄÑéÖ¤ÂëÀà
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 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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<?php
/* ----------------------------------------------------------------------------
* Script Name: encrypt.php
* Creation Date: 2008-4-7 10:36
* Last Modified: 2008-4-12 16:00
* Author: meyu
* Copyright (c) 2007
* Purpose: Êý×Ö×Ö·û´®¼òÒ×¼Ó½âÃÜ
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PHP Éú³ÉËæ»úÊý

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