How to fix invalid argument supplied for foreach() php? - php

Question

i tried to apply some of the existing samples found here in stackoverflow but the problem seems to be unsolved.
$valid_formats = array("jpg", "png", "gif", "zip", "bmp");
$max_file_size = 1024*1000;
$path = "upload/";
$count = 0;
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST"){
foreach ($_FILES['files']['name'] as $f => $name) {
if ($_FILES['files']['error'][$f] == 4) {
continue; // Skip file if any error found}
if ($_FILES['files']['error'][$f] == 0) {
if ($_FILES['files']['size'][$f] > $max_file_size) {
$message[] = "$name is too large!.";
continue; // Skip large files
}
elseif( ! in_array(pathinfo($name, PATHINFO_EXTENSION), $valid_formats) ) {
$message[] = "$name is not a valid format";
...

Answer 1

As urfusion said, $_FILES['files']['name'] is a string, not an array.
That you can do to iterate over all the filenames of submitted files is something like that:
if(is_array($_FILES['files']) && !empty($_FILES['files'])){ // if1
foreach($_FILES['files'] as $file_index=>$file_value){
if($file_index==='name'){ // if2
echo $file_value; // or do something with that name
} // end if2
} // end foreach
} // end if1