php生成短网址示例
2015-01-24信息快讯网
这篇文章主要介绍了php生成短网址示例,需要的朋友可以参考下
php生成短网址
<?php $chars=array("a","b","c","d","e","f","g","h", "i","j","k","l","m","n","o","p", "q","r","s","t","u","v","w","x", "y","z","0","1","2","3","4","5", "6","7","8","9","A","B","C","D", "E","F","G","H","I","J","K","L", "M","N","O","P","Q","R","S","T", "U","V","W","X","Y","Z"); $salt="www.joneto.com"; $hash=md5("http://www.sina.com".$salt); $rs=array(); for($i=0;$i<4;$i++){ $temp=substr($hash, $i*8,8); $temp=base_convert($temp, 16, 10) & base_convert("3fffffff", 16, 10);$str=""; for($j=0;$j<6;$j++){ $subtemp=$temp & intval(base_convert("3d", 16, 10)); $str.=$chars[$subtemp]; $temp=$temp>>5; } unset($temp); $rs[]=$str; } print_r($rs); ?>