Home Backend Development PHP Tutorial A PHP function to generate short URLs

A PHP function to generate short URLs

Aug 08, 2016 am 09:26 AM
echo gt url

Everyone is familiar with short URLs, especially applications on Weibo that have made it popular. In fact, it is very simple to implement this function.

<?php
/**
 * 短网址
 */
 
function urlShort($url){
    $url= crc32($url);
    $result= sprintf("%u", $url);
    $sUrl= '';
    while($result>0){
        $s= $result%62;
        if($s>35){
            $s= chr($s+61);
        } elseif($s>9 && $s<=35){
            $s= chr($s+ 55);
        }
        $sUrl.= $s;
        $result= floor($result/62);
    }
    return $sUrl;
}
 
$url = 'www.qttc.net';
$sUrl = urlShort($url);
 
echo '<meta charset="utf-8" />';
echo '网址:'.$url.'<br />';
echo '短网址:'.$sUrl;
 
?>
Copy after login

The above result output:
Website: www.qttc.net
Short URL: SwOOy3
The short URL can be stored in the database and make a mapping relationship. Together with nginx rewriting rules, short URL generation, restoration, and jump functions can be realized.

The above introduces a PHP function to generate short URLs, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.

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