Home >Backend Development >PHP Tutorial >php简单获取文件扩展名的方法_PHP

php简单获取文件扩展名的方法_PHP

WBOY
WBOYOriginal
2016-05-31 11:45:22909browse

本文实例讲述了php简单获取文件扩展名的方法。分享给大家供大家参考。具体实现方法如下:

<&#63;php
 function get_file_extension($file_name)
 {
  /* may contain multiple dots */
  $string_parts = explode('.', $file_name);
  $extension = $string_parts[count($string_parts) - 1];
  $extension = strtolower($extension);
  return $extension;
 }
 $str="img.jpg";
 echo get_file_extension($str);//输出:jpg
&#63;>

希望本文所述对大家的php程序设计有所帮助。

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn