PHP method to get file extension from given url_PHP Tutorial

How php gets the file extension from a given url

This article describes the example of how php gets the file extension from a given url. Share it with everyone for your reference. The specific implementation method is as follows:

<?php
/**
 * 给定url，获取文件后缀
 * @param string $url
 * @return string
 */
function getUrlPostfix ($url)
{
  $url_arr = explode('.', $url);
  $postfix = $url_arr[count($url_arr) - 1];
  $substr = substr($postfix, 0, 3);
  return $substr;
}
$url = "http://www.bitsCN.com/index.html?id=1";
$str = getUrlPostfix($url);
echo $str . "\n";

I hope this article will be helpful to everyone’s PHP programming design.

http://www.bkjia.com/PHPjc/969339.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/969339.htmlTechArticleHow to get the file extension in php from a given url. This article explains how to get the file extension in php from a given url. method. Share it with everyone for your reference. The specific implementation method is as follows: ?php...