<?php
function random($length) {
	$random = "";
	$x = 0;

	while($x < $length){
		$part = rand(1, 3);
		if ($part == 1){
			$a = 48;
			$b = 57;
		}
		if ($part == 2){
			$a = 65;
			$b = 90;
		}
		if ($part == 3){
			$a = 97;
			$b = 122;
		}

		$code_part = chr(rand($a, $b));//letter generation
		//$code_part = chr(rand(48, 122)); letters + punctuation generation
		$x = $x + 1;
		$random .= $code_part;
	}

	return $random;
}

if (isset($_POST['submit'])) {
	if (isset($_FILES['file']) && !empty($_FILES['file']['name'])) {
    	$file      = $_FILES['file']['name'];
    	$extention = pathinfo($file, PATHINFO_EXTENSION);
    	$file_new  = random(5) . "." . $extention;

    	$temp     = $_FILES['file']['tmp_name'];
    	$filesize = $_FILES['file']['size'] / 1024 / 1024;
    	$size     = number_format($filesize, 3);

		if (in_array(strtolower($extention), array("png","ico","jpeg","jpg","gif"))) {
			if (move_uploaded_file($temp, "../images/news/" . $file_new)) {
				$file_new = urlencode($file_new);
            	$file     = urlencode($file);
				$upload_e = false;
			} else {
				$upload_e = "Failed to upload.";
			}
		} else {
			$upload_e = "You can't upload that file type!";
		}
	} else {
		$upload_e = "";
	}
}
?>