<?phpfunction list_dir($dirpath){ //判断路径最后一个字符是不是"\" //如果不是 则在路径后加"\" if($dirpath[strlen($dirpath)-1]!="\\"){$dirpath.="\\";} static $result_array=array(); //判断给定路径是否是一个目录 if(is_dir($dirpath)){ //打开目录句柄 $handle=opendir($dirpath); //从目录句柄中读取条目 //读取该目录下的所有文件及文件夹 while($file=readdir($handle)){ if($file=="."||$file==".."){continue;} //判断读取出来的是否是一个目录 if(is_dir($dirpath.$file)){ list_dir($dirpath.$file."\\"); }else{ //将一个或多个单元压入数组的末尾 array_push($result_array,$dirpath.$file); } } closedir($handle); } return $result_array; } $path="D:";$array=list_dir($path); foreach($array as $value){ echo $value; echo "<br>"; }?>]
要是遍历d盘的时候,由于文件太多,会卡在哪里很久
有没有什么优化的方法
回复讨论(解决方案)
减少遍历的范围是唯一优化的方法
使用 glob 不递归或目录迭代器可使速度提高,但也有限
$p = './';$res = glob("$p/*");for($i=0; $i<count($res); $i++) { if(is_dir($res[$i])) foreach(glob("{$res[$i]}/*") as $f) $res[] = $f;}print_r($res);
$path = '.';$ite = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($path) );$deep = 0;foreach ($ite as $cur) { $fn = $cur->getBasename(); if($fn == '.' || $fn == '..') continue; $res[] = $fn; if(($d=$ite->getDepth()) == $deep); echo "$d $fn <br>";}

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