How does php extract the file extension from a url

This article mainly introduces how php takes out file extensions from a url, which has certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let Xiaobian take you to understand it together.

header("Content-type:text/html; charset=utf-8");//Requirements: Get file extension from a url/* * Scheme1 * Function name: getExt1 * Description: Get file extension from url */ function getExt1 ($url){//Parse URL, array ('scheme ' => string ' http','host'=> string ' blog.51cto.com'path' => string '/suyanzhu/2299545.jpg'); $arr = parse_url($url); //Get file path $file = basename($arr['path']); //string splitting $ext = explode('. ', $file); //return extension return $ext[count($ext)-1];}var_dump(getExt1("https://blog.51cto.com/suyanzhu/2299545.jpg")); Thank you for reading this article carefully, I hope Xiaobian shared "php how to extract file extensions from a url" This article is helpful to everyone, but also hope that everyone will support, pay attention to industry information channels, more relevant knowledge waiting for you to learn!