Changing file names on upload - php

Question

I currently have a form with 2x name=userfile[] attributes in the inputs that is handled within the code below. What would be the best way to enable me to rename the filenames foreach file on upload - I want them to be specific to the input
What I am after:
$imageOneName = img1.$var;
$imageTwoName = img2.$var;
Code:
for($i=0; $i<count($_FILES['userfile']['name']); $i++) {
//Get the temp file path
$tmpFilePath = $_FILES['userfile']['tmp_name'][$i];
//Make sure we have a filepath
if ($tmpFilePath != ""){
//Setup our new file path
$newFilePath = $local_path .'images/' . $_FILES['userfile']['name'][$i];
//Upload the file into the temp dir
if(move_uploaded_file($tmpFilePath, $newFilePath)) {
//Handle other code here
}
}
}

Answer 1

Instead of
<input type="file" name="userfile[]" id="input1">
<input type="file" name="userfile[]" id="input2">
You can do the following to distinguish between the two
<input type="file" name="userfile[desiredNameOfFile1]" id="input1">
<input type="file" name="userfile[desiredNameOfFile2]" id="input2">
With PHP handling it like this:
foreach($_FILES['userFile']['name'] AS $desiredNameOfFile => $fileInfo) {
//Get the temp file path
$tmpFilePath = $_FILES['userfile']['tmp_name'][$desiredNameOfFile];
//Make sure we have a filepath
if ($tmpFilePath != ""){
//Setup our new file path
$newFilePath = $local_path .'images/' . $desiredNameOfFile . pathInfo($_FILES['userfile']['tmp_name'][$desiredNameOfFile],PATHINFO_EXTENSION);
//Upload the file into the temp dir
if(move_uploaded_file($tmpFilePath, $newFilePath)) {
//Handle other code here
}
}
}
Be aware: this code will overwrite files that already have that name
Edit
If you want multiple file selects
<input type="file" name="userfile[desiredNameOfFile1][]" id="input1" multiple>
<input type="file" name="userfile[desiredNameOfFile2][]" id="input2" multiple>
Php
foreach($_FILES['userfile']['name'] AS $desiredNameOfFile => $fileInfo) {
for($i = 0; $i < count($fileInfo); $i++) {
//Get the temp file path
$tmpFilePath = $_FILES['userfile']['tmp_name'][$desiredNameOfFile][$i];
// Make sure we have a filepath
if ($tmpFilePath != ""){
// Setup our new file path
$newFilePath = $local_path .'images/' . $desiredNameOfFile . $i . pathInfo($_FILES['userfile']['tmp_name'][$desiredNameOfFile][$i],PATHINFO_EXTENSION);
// Upload the file into the temp dir
if(move_uploaded_file($tmpFilePath, $newFilePath)) {
// Handle other code here
}
}
}
}
}

Answer 2

try this code :-
$extension = pathinfo($_FILES['userfile']['name'][$i], PATHINFO_EXTENSION); //Get extension of image
$new= rand(0000,9999); //creat random name
$file_name=$new.'.'.$extension; //create file name with extension
$newFilePath = $local_path .'images/' . $file_name;

Answer 3

With below code generate unique file name for each file.
$file_name = preg_replace('/\s+/', '', $_FILES['userfile']['name'][$i]); /// remove unexpected symbols , number
$path[$i]="image/".time().$i.$file_name; /// generate unique name
move_uploaded_file($file_tmp[$i],$path[$i]); /// move that file on your path folder