如何通过addMempic.php实现会员图片的添加功能？

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phppublic function addMempic($file, $path) { $id=md5(uniqid(microtime(), true) . mt_rand()); $extensions=$file->getClientOriginalExtension(); $newname=$id . '.' . $extensions; $file->move($path, $newname); $lujing='/' . $path . '/' . $newname . '';}

addMempic.php

public function addMempic($file, $path) { $id = md5(uniqid(microtime() . mt_rand())); $extensions = $file->getClientOriginalExtension(); $newname = $id . '.' . $extensions; $file->move($path, $newname); $lujing = '/'.$path.'/'.$newname; $bak_url= str_replace(date("Ym"),'bak',$path); if (!file_exists($bak_url)) { mkdir($bak_url, 0777, true); } copy($path.'/'.$newname,$bak_url.'/'.$newname ); return $lujing; }