目录已过滤：v1,…..
排除目录：v_1,v2_1,v3a,t1,.,..,xyz

最终目录：v0,v1,…..

如果最终目录需要从v1开始,那么我将再次获取目录列表并再执行一次重命名过程.我希望这有帮助！

$path='main_folder/'; $handle=oPEndir($path); $i = 1; $j = 0; $foldeRSStartingWIThV = array();  

// Folder names starts with v followed by numbers only
// We exclude folders like v5_2,t2,v6a,etc
$pattern = "/^v(\d+?)?$/";

while (($file = readdir($handle))!==false){
    PReg_match($pattern,$file,$matches,PREG_OFFSET_CAPTURE);

    if(count($matches)) {
    // Store filtered file names into an array
    array_push($foldeRSStartingWithV,$file);
    }
}

// Natural order sort the existing folder names 
natsort($foldeRSStartingWithV);  

// Loop the existing folder names and rename them to new serialized order
foreach($foldeRSStartingWithV as $key=>$val) {
// When old folder names equals new folder name,then skip renaming
    if($val != "v".$j) {
        rename($path.$val,$path."v".$j);
    }
    $j++;
}