标签：pac info pathinfo div 获取 ext3 rpo path 获取文件
1： function getExt1($filename) { $arr = explode(‘.‘,$filename); return array_pop($arr);; } function getExt2($filename) { $ext = strrchr($filename,‘.‘); return $ext; } function getExt3($filename) { $pos = strrpos($filename, ‘.‘); $ext = substr($filename, $pos); return $ext; } function getExt4($filename) { $arr = pathinfo($filename); $ext = $arr[‘extension‘]; return $ext; } function getExt4($filename) { $arr = pathinfo($filename); $ext = $arr[‘extension‘]; return $ext; }标签：pac info pathinfo div 获取 ext3 rpo path 获取文件
原文地址：https://www.cnblogs.com/gjh99/p/10711929.html
