如下:
<? PHP获取文件后缀名的几种方法1: function get_file_type($filename){ $type = substr($filename, strrpos($filename, ".")+1); return $type; } PHP获取文件后缀名的几种方法2: function get_file_type($filename) { $type = pathinfo($filename); $type = strtolower($type["extension"]); return $type; } PHP获取文件后缀名的几种方法3: function get_file_type($filename) { $type =explode("." , $filename); $count=count($type)-1; return $type[$count]; } ?>