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$path = './test'; //Ҫɾ³ýµÄÎļþ¼Ð·¾¶
if(is_dir($path)){
    rmdir($path);
}

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function delDir($path){
    if(is_dir($path)){
        if ($dh = opendir($path)){
            while (($file = readdir($dh)) !== false){
                if ($file != '.' && $file != '..'){
                    $fullpath = $path.'/'.$file;
                    if(!is_dir($fullpath)){
                        unlink($fullpath);
                    }else{
                        delDir($fullpath);
                    }
                }
            }
            closedir($dh);
            rmdir($path);
        }
    }
}

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