Image imagecopyresampled problem

[Harley1979]

Hello,

 

This is the first time I have ever attempted uploading/resizing images in php. Upto now I've done ok I think except for one small problem I am having.

 

I have a line of code to determine if the width or height of an image is bigger than it should appear on screen, if so to resize it to a set width or height proportionatly.

 

I have succeeded in resizing an image for my thumbnails, but just can't seem to do so for my main image.

 

Can someone point out where I am going wrong?

 

	$path = "../gallery/";
$thumbPath = "../gallery/thumbs/";

$max_size = 2000000;

if(isset($HTTP_POST_FILES['imagefile'])){
	$imageMsg = "You must choose an image to upload";
}

if(is_uploaded_file($HTTP_POST_FILES['imagefile']['tmp_name'])){

	if($HTTP_POST_FILES['imagefile']['size'] > $max_size){
		$imageMsg = "The image is just too feckin big!";
		$err = true;
	}

	if($HTTP_POST_FILES['imagefile']['type'] == "image/jpeg" || $HTTP_POST_FILES['imagefile']['type'] == "image/gif"){

	// get last image from db
	$result = mysql_query("SELECT photo FROM gallery ORDER BY id desc LIMIT 1");
	$row = mysql_fetch_row($result);

	// modify name
	if(empty($row[0])){$photoName = 0;}
	$photoName = $row[0] + 1;
	$newName = $photoName.".jpg";

	// if our image is not the desired dimension, resample to default dimensions
	$orig = $HTTP_POST_FILES['imagefile']['tmp_name'];
	list($origWidth, $origHeight) = getimagesize($orig);

	if($origWidth < $origHeight && $origWidth > 450){
		$newHeight = 530;
		$newWidth = $origWidth * ($newHeight/$origHeight);
		echo $newWidth."<br />";
		echo $newHeight."<br />";

		$resizedImage = imagecreatetruecolor($newWidth, $newHeight);

                        //this is where i am getting the error
		imagecopyresampled($resizedImage, $orig, 0, 0, 0, 0, $newWidth, $newHeight, $origWidth, $origHeight);
	}
	 elseif($origWidth > $origHeight && $origHeight > 530){
		$newWidth = 550;
		$newHeight = $origHeight * ($newWidth/$origWidth);
		echo $newWidth."<br />";
		echo $newHeight."<br />";

		$resizedImage = imagecreatetruecolor($newWidth, $newHeight);
                        //this is where i am getting the error
                        imagecopyresampled($resizedImage, $orig, 0, 0, 0, 0, $newWidth, $newHeight, $origWidth, $origHeight);
	}

		$res = imagejpeg($resizedImage, $path.$newName);

		if(!$res){
			$imageMsg = "Upload failed!";
			$err = true;
		} else {
			$imageMsg = "Upload successful";

			// create thumbnail
			$src = ($HTTP_POST_FILES['imagefile']['tmp_name']);

			list($width, $height) = getimagesize($src);

			$storeImage = imagecreatefromjpeg($src);

			// set crop size
			if($width > $height){
				$biggestside = $width;
			} else {
				$biggestside = $height;
			}

			// crop size will be half that of the largest side
			$croppercent = .15;
			$cropwidth = $biggestside*$croppercent;
			$cropheight = $biggestside*$croppercent;

			// get top left coordinate
			$cl = array("x"=>($width-$cropwidth)/2, "y"=>($height-$cropheight)/2);

			// create thumbnail
			$thumbsize = 75;
			$thumb = imagecreatetruecolor($thumbsize, $thumbsize);
			imagecopyresampled($thumb, $storeImage, 0, 0, $cl['x'], $cl['y'], $thumbsize, $thumbsize, $cropwidth, $cropheight);

			// save to path and destroy temp files
			imagejpeg($thumb, $thumbPath.$newName);

			imagedestroy($thumb);
			imagedestroy($storeImage);
		}

	} else {
		$imageMsg = "Wrong file type!";
		$err = true;
	}
}

[phpknight]

For the line you have marked, the call looks okay.  Make sure the image source and destination are correct.  I have a very similar function that I got from tweaking this code:

 

http://www.netlobo.com/php_image_resize_gd2.html

 

It become part of a larger application.  I remember the source/destination were the ones that gave me problems.  Once I got that right, the entire thing worked.