PHP file input code assistance - php

Question

I have a form which has 2 file input fields. I have a PHP script which nicely handles the upload of the files - but what I am missing is the ability to get back the filename values from the form after the upload is complete. The code is below.
I am thinking maybe it might be easier to adapt this code to make it specific to upload the files of each specified file input - then I can get the file name back from easily?
e.g. so have 2 blocks of code to upload and store the file name value of inputs - input1 and input2 for example...?
Any ideas?
// initialize output;
$output = true;
// valid extensions
$ext_array = array('pdf', 'txt', 'doc', 'docx', 'rtf', 'jpg', 'jpeg', 'png', 'eps', 'svg', 'gif', 'ai');
// create unique path for this form submission
//$uploadpath = 'assets/uploads/';
// you can create some logic to automatically
// generate some type of folder structure here.
// the path that you specify will automatically
// be created by the script if it doesn't already
// exist.
// UPLOAD TO FOLDER IN /ASSETS/UPLOADS/ WITH ID OF THE PARENT PROJECT FOLDER RESOURCE
// Get page ID
// $pageid = $modx->resource->get('id');
// $uploadpath = 'assets/uploads/'.$pageid.'/';
// Get parent page title
$parentObj = $modx->resource->getOne('Parent');
$parentpageid = $parentObj->get('pagetitle');
$uploadpath = 'assets/uploads/'.$parentpageid.'/';
// get full path to unique folder
$target_path = $modx->config['base_path'] . $uploadpath;
// get uploaded file names:
$submittedfiles = array_keys($_FILES);
// loop through files
foreach ($submittedfiles as $sf) {
// Get Filename and make sure its good.
$filename = basename( $_FILES[$sf]['name'] );
// Get file's extension
$ext = pathinfo($filename, PATHINFO_EXTENSION);
$ext = mb_strtolower($ext); // case insensitive
// is the file name empty (no file uploaded)
if($filename != '') {
// is this the right type of file?
if(in_array($ext, $ext_array)) {
// clean up file name and make unique
$filename = mb_strtolower($filename); // to lowercase
$filename = str_replace(' ', '_', $filename); // spaces to underscores
$filename = date("Y-m-d_G-i-s_") . $filename; // add date & time
// full path to new file
$myTarget = $target_path . $filename;
// create directory to move file into if it doesn't exist
mkdir($target_path, 0755, true);
// is the file moved to the proper folder successfully?
if(move_uploaded_file($_FILES[$sf]['tmp_name'], $myTarget)) {
// set a new placeholder with the new full path (if you need it in subsequent hooks)
$modx->setPlaceholder('fi.'.$sf.'_new', $myTarget);
// set the permissions on the file
if (!chmod($myTarget, 0644)) { /*some debug function*/ }
} else {
// File not uploaded
$errorMsg = 'There was a problem uploading the file.';
$hook->addError($sf, $errorMsg);
$output = false; // generate submission error
}
} else {
// File type not allowed
$errorMsg = 'Type of file not allowed.';
$hook->addError($sf, $errorMsg);
$output = false; // generate submission error
}
// if no file, don't error, but return blank
} else {
$hook->setValue($sf, '');
}
}
return $output;