upload/uploadGal.php

<?php
extract($_POST);
$error=array();
$extension=array("jpeg","jpg","png","gif");
foreach($_FILES["files"]["tmp_name"] as $key=>$tmp_name) {
    echo $key."<br>";
    $file_name=$_FILES["files"]["name"][$key];
    $file_tmp=$_FILES["files"]["tmp_name"][$key];
    $ext=pathinfo($file_name,PATHINFO_EXTENSION);
    echo "uploading file ".$file_name."<br>";
    if(in_array($ext,$extension)) {
        if(!file_exists("./".$file_name)) {
           if ( move_uploaded_file($file_tmp=$_FILES["files"]["tmp_name"][$key],"./".$file_name) ) { echo "passed"; } else { echo "ERROR to upload files."; };
        }
        else {
            $filename=basename($file_name,$ext);
            $newFileName=$filename.time().".".$ext;
            if (move_uploaded_file($file_tmp=$_FILES["files"]["tmp_name"][$key],"./".$newFileName)) { echo "passed"; } else { echo "ERROR uploading file."; };
           // if (move_uploaded_file($_FILES['files']['tmp_name'][$i], $dir.$name)) { echo "passed"; } else {    echo "ERROR uploading your file. Try it again.<br>";   };

        }
    }
    else {
        array_push($error,"$file_name, ");
    }
}

echo '<p><a href="javascript:history.go(-1)">jit zpet</a>';