PHP获取文件后缀名的几种常用方法总结

function get_file_type($filename){ $type = substr($filename, strrpos($filename, ".")+1); return $type; }

function get_file_type($filename){ $type = pathinfo($filename); $type = strtolower($type["extension"]); return $type; }

function get_file_type($filename){ $type = explode("." , $filename); return end($type); }