php count variable outside loop being reset - php

Question

I've set $count as counter outside foreach loop, but it seemed to be reset everytime. This php is used to upload multiple files.
$count = 0;
foreach ($_FILES["my_file"]["error"] as $key => $error) {
if ($error == UPLOAD_ERR_OK) {
$count++;
echo "<script>alert(".$count.");</script>";
$tmp_name = $_FILES["my_file"]["tmp_name"][$key];
$name = basename($_FILES["my_file"]["name"][$key]);
move_uploaded_file($tmp_name, "upload/". $SN."/".$name .$count);
echo json_encode(array('id' => 'message', 'data' => 'successful'));
}
}
echo "<script>alert(".$count.");</script>"; to observe the counter , and if upload three files it will alert '1' three times. Also, I added $count to upload filename, for example , filename 1.jpg,2.jpg , after uploading ,the filename will become 1.jpg1, 2.jpg1, it supposed to be 1.jpg1,2.jpg2. what is wrong with my loop?
html code:
<form method="post" action="ImagesUpload.php" id="myForm1" enctype="multipart/form-data">
<input name="my_file[]" id="file-fr" type="file" class="file" data-preview-file-type="text" multiple>
</form>

Answer 1

Are you using AJAX to upload?
I added a submit button to your code and it worked.
Also, are you sure you are selecting more than one file?
See modified code:
HTML
<form method="post" action="upload.php" id="myForm1" enctype="multipart/form-data">
<input name="my_file[]" id="file-fr" type="file" class="file" data-preview-file-type="text" multiple>
<input type="submit" >
</form>
PHP
$count = 0;
if(isset($_FILES["my_file"])){
print_r($_FILES["my_file"]);
foreach ($_FILES["my_file"]["error"] as $key => $error) {
if ($error == UPLOAD_ERR_OK) {
$count++;
echo "<script>alert(".$count.");</script>";
$tmp_name = $_FILES["my_file"]["tmp_name"][$key];
$name = basename($_FILES["my_file"]["name"][$key]);
move_uploaded_file($tmp_name, "upload/". $SN."/".$name .$count);
echo json_encode(array('id' => 'message', 'data' => 'successful'));
}
}
}
Both blocks of code are in the same file.