Resize image when uploaded - php

Question

What is wrong with my code I need to resize image when upload in variable $new_width and $new_height is dimension for image. I think it's problem in $newname variable because it is working before when I added :D
<meta charset="utf-8" />
<?php
include 'config.php';
mysqli_set_charset($db, 'utf8');
$id = $_COOKIE["id"];
if (isset($_POST["action"])){
$newname = substr(md5(rand() * time()), 5,10);
$folder = "image/";
$folder2 = "image/thumb/";
$filetmp = $_FILES["filep"]["tmp_name"];
$filename = $_FILES["filep"]["name"];
$filetype = $_FILES["filep"]["type"];
$filesize = $_FILES["filep"]["size"];
$fileinfo = getimagesize($_FILES["filep"]["tmp_name"]);
$filewidth = $fileinfo[0];
$fileheight = $fileinfo[1];
$filepath = "$folder".$newname.$filename;
$filepath_thumb = "$folder".$filename;
if($filetmp == ""){
echo "Upload image";
}
else {
if($filesize > 2097152){
echo "Less then 2 mb";
}
else{
if($filetype != "image/jpeg" && $filetype != "image/png"
&& $filetype != "image/gif" && $filetype != "image/jpg"){
echo ".jpeg, .jpg, .gif, .png";
}
else{
move_uploaded_file($filetmp,$filepath);
if($filetype == "image/jpeg"){
$imagecreate = "imagecreatefromjpeg";
$imageformat = "imagejpeg";
}
if($filetype == "image/png"){
$imagecreate = "imagecreatefrompng";
$imageformat = "imagepng";
}
if($filetype == "image/gif"){
$imagecreate= "imagecreatefromgif";
$imageformat = "imagegif";
}
if($filetype == "image/jpg"){
$imagecreate= "imagecreatefromjpg";
$imageformat = "imagejpg";
}
$new_width = "200";
$new_height = "150";
$image_p = imagecreatetruecolor($new_width, $new_height);
$image = $imagecreate($filepath); //photo folder
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $filewidth, $fileheight);
$imageformat($image_p, $filepath_thumb);//thumb folder
$res = mysqli_query($db, "UPDATE Imager SET Cover='".$newname.$filename."' WHERE IDImg ='$id'");
if($res) {
echo "Good.";
}
else {
echo "Not Good.";
}
}
}
}
}
header( "Refresh:2; url=img.php", true, 303);
?>

Answer 1

I would suggest you use a library like Imagine - it will make this process much simpler.