The example in this article describes how to simply obtain the file extension in PHP. Share it with everyone for your reference. The specific implementation method is as follows:
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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
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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);//Output: jpg<🎜>
<🎜>?>
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I hope this article will be helpful to everyone’s PHP programming design.
http://www.bkjia.com/PHPjc/973123.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/973123.htmlTechArticleHow to simply obtain the file extension in php. This article mainly introduces the simple method of obtaining the file extension in php, with examples. Analyzes the technique of obtaining file extensions in PHP, which has certain reference value...
