PHP traverses the files in the folder and obtains the value of the input name

$dir = dirname(__FILE__); //The name of the directory to be traversed ->The folder where the current file is located
//$dir='D:PHPwampwwwadminhostsadmin';
//PHP traverses the folder Download all files
$handle=opendir($dir.".");
$arr = array();
while($file=readdir($handle)){
　if(is_file($file)){
　　if ($file != "."&& $file != "..") {
　　　$file = mb_substr($file,0,strripos($file,'.'));
　　　$files = explode(' ', $file); //Convert $file into an array
　　　$arr[]=$files['0'];//Convert into a one-dimensional array
　　}
　　}
}
//print_r($arr);
closedir( $handle);
//PHP gets the value of input->name
foreach ($_POST AS $key=>$value){
　if(!in_array($key,$arr)){ //Judge the name value Is it in $arr? echo "$key: does not exist";
}
}
?>







　

　　
　　


　　

　　


　　


　　


　　< input type="hidden" name="text">


　　


　

The above introduces PHP to traverse the files in the folder and obtain the value of the input name, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.