PHP GD Script: How can it work with photos that are approximately 1mb or larger?

[LearningJunkie]

I am using a PHP script from hotscripts.com to resize batches of photos for placement on a web page. The script works, but only with photos that are not too large. The largest it has worked for is 104 KB. I try with a photo in the batch that is 840 KB and it resizes each photo up to the point that it reaches the large photo, then stops running.

Any idea how to fix this? Thank you very much!

The script is as follows:

<?php
function createThumbs( $pathToImages, $pathToThumbs, $thumbHeight )
{
// open the directory
$dir = opendir( $pathToImages );

// loop through it, looking for any/all JPG files:
while (false !== ($fname = readdir( $dir ))) {

// parse path for the extension
$info = pathinfo($pathToImages . $fname);

// continue only if this is a JPEG image
if ( strtolower($info['extension']) == 'jpg' )
{
echo "Creating thumbnail for {$fname} <br />";

// load image and get image size
$img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );
$width = imagesx( $img );
$height = imagesy( $img );

// calculate thumbnail size
$new_height = $thumbHeight;
$new_width = floor( $width * ( $thumbHeight / $height ) );

// create a new tempopary image
$tmp_img = imagecreatetruecolor( $new_width, $new_height );

// copy and resize old image into new image
imagecopyresampled( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

// save thumbnail into a file
imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );
}
}

// close the directory
closedir( $dir );
}

createThumbs("photos_fullsize/", "photos_334pxtall/", 334);
?>