php - Multiple image upload, change name if image already exists -

i have code changes image names in windows systems. if there image cup.jpg, code changes name cup0.jpg.

the problem however, when i'm uploading many images array , of images exist , need name changed.

what changes need made work multiple files?

for($i=0; $i<count($_files['upload']['name']); $i++) {   $target_file = $target_dir . basename($_files["upload"]["name"][$i]);   $images[] = basename($_files['upload']['name'][$i]); } if (file_exists($target_file)) {   $i = 0;   echo " image exists, changing name.";   while (file_exists($target_file)) {     $extension = pathinfo($target_file, pathinfo_extension);     $filename = pathinfo($target_file, pathinfo_filename);     $new_filename = $filename . $i . $iterator . '.' . $extension;     $target_file = $target_dir . $new_filename;     $i++;     $images[] = $new_filename;   } } 

i tried adding loop code doesn't work if array consists of new images , existing images of images need names changed.

here go:

 $images = array();  for($i=0; $i<count($_files['upload']['name']); $i++) {     getuniquename(basename($_files["upload"]["name"][$i]),$images);  }   function getuniquename ($name, &$images) {      $i = 0;      $extension = pathinfo($name, pathinfo_extension);      $filename = pathinfo($name, pathinfo_filename);       while (in_array($name, $images)) {       $name =  $filename . $i . '.' . $extension;         $i++;      }     /* need define $target_dir here */     $i=0;     while (file_exists($target_dir.$name)) {        $name =  $filename . $i . '.' . $extension;          $i++;      }      $images[]= $target_dir.$name;    }