How to generate short URL in php

This article mainly introduces examples of php generating short URLs. Friends who need it can refer to

php generates short URLs

<?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);
?>

The above is the entire content of this article , I hope it will be helpful to everyone’s learning. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:

How to get a random array list through php

php implementation of converting time difference into string

The above is the detailed content of How to generate short URL in php. For more information, please follow other related articles on the PHP Chinese website!