Resize an image with php without a library - php

Question

I've a this piece of code.
It charge an image to my web server and save the name into my sql.
All works except the resize time. I found the function on http://php.net/manual/en/function.imagecopyresampled.php
Any help will be very appreciated.
Thanks.
<?php
if(isset($_FILES["AddPhoto"])) {
if ($_FILES["AddPhoto"]["error"] > 0) {
$newImgMessError = $MYCARDEDIT0058;
}
else {
$fileName = $_FILES['AddPhoto']['name'];
$tmpName = $_FILES['AddPhoto']['tmp_name'];
$fileSize = $_FILES['AddPhoto']['size']/1024;
$fileType = $_FILES['AddPhoto']['type'];
$fileExtension = end(explode(".", $fileName));
if(($fileType == "image/gif" || $fileType == "image/jpeg" || $fileType == "image/pjpeg" || $fileType == "image/png" || $fileType == "image/x-png") && $fileSize < 1000000) {
$newFileName = md5(date('u').rand(0,99)).".".$fileExtension;
$imagePath = "assets/picts/".$newFileName;
// THIS PART DO NOT WORK
// Set a maximum height and width
$width = 200;
$height = 200;
// Get new dimensions
list($width_orig, $height_orig) = getimagesize($imagePath);
$ratio_orig = $width_orig/$height_orig;
if ($width/$height > $ratio_orig) {
$width = $height*$ratio_orig;
} else {
$height = $width/$ratio_orig;
}
// Resample
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($imagePath);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
// Output
$imagePath = imagejpeg($image_p, null, 100);
$result = #move_uploaded_file($tmpName, $imagePath);
$request = mysql_query("SELECT ".$TypeField."Images FROM $TypeFiche WHERE $TypeId='$cardId'");
$var2 = mysql_fetch_array($request);
mysql_query("UPDATE ".$TypeFiche." SET `".$TypeField."Images`='".$var2[$TypeField.'Images'].$newFileName.",' WHERE $TypeId='$cardId'");
if (!$result) {
$newImgMessError = $INSCRIPTION0074." <b>".$fileName."</b>. ".$INSCRIPTION0075."<br />";
}
if ($result) {
$newImgMessError = $INSCRIPTION0076." <b>".$fileName."</b> ".$INSCRIPTION0077."<br />";
}
}
}
}
?>

Answer 1

1. You have to move the file to the new directory before you can resize it. Put your resize below this line:
$result = #move_uploaded_file($tmpName, $imagePath);
Otherwise the resize code tries to access a file which doesn't exist yet.
2. You have to write the new image as file out, so replace that line
$imagePath = imagejpeg($image_p, null, 100);
with this
imagejpeg($image_p, $imagePath, 100);
http://php.net/manual/en/function.imagejpeg.php