uploading multi-images without name duplication

[Yousef Altaf]

I am trying to upload multi-images I am using this script everything is fine and the images uploaded successfully the problem here is I don't want to duplicate the images name so I used this script to avoid this but no luck
any idea

this is my code

<?php
if(isset($_POST['submit'])){
$target = '../images/Projects/';
    $num=1;
    $projectID=$p;
    foreach ($_FILES["img"]["error"] as $key => $error){
        if ($error==UPLOAD_ERR_OK){
            $tmp_name = $_FILES["img"]["tmp_name"][$key];
            $name = $_FILES["img"]["name"][$key];
            move_uploaded_file($tmp_name, "$target/$name");
 
            if(file_exists($name)){
              $duplicate_filename = TRUE;
            $i=0;
            while($duplicate_filename){
            $filename_data=explode(".", $_FILES['img']['name']);
            $new_filename=$filename_data[0] . "_" . $i . "." . $filename_data[1];
            $_FILES['img']['name']=$new_filename;
            $name="$target".$_FILES['img']['name']."";
            if(file_exists($name))
            {
            $i++;
            }
            else
            {
            $duplicate_filename=FALSE;
        }
    }
}
 
            $putData = "INSERT INTO projects_images (id, image, image_id)VALUE('', '$name', '$projectID')";
              $result = $db->query($putData)or die($db->error);
            if($result){header('Location:index.php?id=2&proid=3&p='.$p.'&msg=Images has been uploaded successfully, carry on upload more images if you like');
            }else{echo"Error";
            }
        }
    } 
}
?>

[vspiridonov]

You can just add mktime() value to every image name.

[Yousef Altaf]

vspiridonov can you please send me an exsample on what you are saying

[vspiridonov]

$new_filename=$filename_data[0] . "_" . mktime() . "." . $filename_data[1];