php - naming Multiple file input fields on a form - php

Question

I am wanting to have multiple fields on one form that can insert files.
I have the below script, but I want to be able to identify what field the inserted file belongs to in the saved name.
<form action="" method="post" enctype='multipart/form-data' id="form" name="form">
Input 1<input type="file" name="upload[]" >
Input 2<input type="file" name="upload[]" >
Input 3<input type="file" name="upload[]" >
<button id="submit-button">Upload</button>
</form>
<?php
//if(isset($_POST['submit']) && !empty($_POST) ){
$count = 0;
$max_file_size = 5000000;
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST"){
// Loop $_FILES to exeicute all files
foreach ($_FILES['upload']['name'] as $f => $name) {
$path = 'documents'; //path of directory
if ($_FILES['upload']['error'][$f] == 4) {
continue; // Skip file if any error found
} else {
if ($_FILES['upload']['size'][$f] > $max_file_size) {
$message[] = "$name is too large!.";
continue; // Skip large files
}
else {
// No error found! Move uploaded files
//$name_of_file = $_FILES['username']['name'][$f];
$temp_name = $_FILES['upload']['tmp_name'][$f]; //[$count];
move_uploaded_file($temp_name, "$path/"."$name");
$count++; // Number of successfully uploaded file
}
}
}
}
At the moment it just saves the files into the one location, so I cant differentiate them and identify which field they are from.
can anyone please help?

Answer 1

I have worked it out. I have taken the comments above and placed an Text input field at each of the File Fields. These could also be hidden fields if you need set names.
Then I scroll through them and save the names and apply those names on the server side.
Thanks to the comments, they helped me see the solution.
<form action="" method="post" enctype='multipart/form-data' id="form" name="form">
<input type="text" name="input0" value=""><input type="file" name="upload[]" ><br><br>
<input type="text" name="input1" value=""><input type="file" name="upload[]" ><br><br>
<input type="text" name="input2" value=""><input type="file" name="upload[]" ><br><br>
<button id="submit-button">Upload</button>
</form>
<?php
$count = 0;
$max_file_size = 500000000000;
if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST"){
// Loop $_FILES to exeicute all files
$x = 0;
$input = "input";
while ($x <= 2){
$field_name = $input.$x;
$field[$x] = $_POST[$field_name];
$x++;
}
foreach ($_FILES['upload']['name'] as $f => $name) {
$path = 'documents'; //path of directory
if ($_FILES['upload']['error'][$f] == 4) {
continue; // Skip file if any error found
} else {
if ($_FILES['upload']['size'][$f] > $max_file_size) {
$message[] = "$name is too large!.";
continue; // Skip large files
}
else {
$temp_name = $_FILES['upload']['tmp_name'][$f]; //[$count];
move_uploaded_file($temp_name, "$path/"."$field[$count]"."$name");
$count++; // Number of successfully uploaded file
}
}
}
}