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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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GAE ×î½ü·¢²¼ÁËÕýʽ֧³ÖJavaµÄ֪ͨ¡£ÓÚÊÇ£¬»¥ ......

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VC6 °æ±¾ÊÇʹÓà Visual Studio 6 ±àÒëÆ÷±àÒëµÄ£¬Èç¹ûÄãµÄ PHP ÊÇÓà Apache À´¼ÜÉèµÄ£¬ÄÇÄã¾ÍÑ¡Ôñ VC6 °æ±¾¡£
VC9 °æ±¾ÊÇʹÓà Visual Studio 2008 ±àÒëÆ÷±àÒëµÄ£¬Èç¹ûÄãµÄ PHP ÊÇÓà IIS À´¼ÜÉèµÄ£¬ÄÇÄã¾ÍÑ¡Ôñ VC9 °æ±¾¡£
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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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