php生成短网址的方法

来源：不言 发布时间：2018-12-05 15:49:41 阅读量：750

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

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<?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);

?>

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