functions.php

<?php
// functions.php - function library
// Written by:  Serhiy Kony, December 2015

// Function to upload files
// Written by:  Charles Kaplan
function upload($input, $dir, $file, $extns, $maxsize) {
	$msg = NULL;
	$rc = 0;
	if (isset($_FILES[$input]['tmp_name'])) {
		if (is_uploaded_file($_FILES[$input]['tmp_name'])) {
			$fn = $_FILES[$input]['name'];
			$ext = trim(strtolower(strrchr($fn, ".")));
			if (!in_array($ext, $extns))
				{$msg = "Invalid File Type"; $rc = 10;}
			if ($_FILES[$input]['size'] > $maxsize)
				{$msg = "Uploaded file size [" . $_FILES[$input]['size'] . "] exceeds limit [$maxsize]"; $rc = 11;}
			if (substr($dir,-1,1) != "/")
				$dir .= "/";
			$savefile = $dir . strtolower($file) . $ext;
			if ($rc == 0) {
				$result = move_uploaded_file($_FILES[$input]['tmp_name'], $savefile);
				if ($result > 1)
					{$msg = "Move Uploaded File Failed"; $rc = $result;}
				}
			}
		else {$msg = "No Uploaded File"; $rc = 12;}
		}
	else {$msg = "No Uploaded File"; $rc = 12;}
	if ($rc == 0)
		return(array($rc, $savefile));
	else return(array($rc, $msg));
	}

//Function to display an error message
function display_error(){
  //Display an error message
  echo "
      <div class='alert alert-danger'>
        <strong>Ooops: </strong> Something went wrong. System is expiriencing technical dificalties. Please try again!
      </div>";

}
?>