[SOLVED] Memory problems

[tjodolv]

It's me, again...

 

This problem may be a server problem, but I'll start by asking here. I have written a script for uploading images. When i attempt to upload images with a certain filesize, i get a fatal error. I tried with different filesizes, and narrowed down the approximate borderline to between 30k and 40k.

 

A 76K .jpeg file works fine.

 

A 1.7M .jpeg gives the error:

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 2608 bytes) in /Users/test/Sites/cms/lib/functions.inc.php on line 1050

 

A 20K .png file works fine.

 

A 40K .png file gives the error:

Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 3686400 bytes) in /Users/test/Sites/cms/lib/functions.inc.php on line 1056

 

The line in question is part of a function i found on the web:

<?php
// this function originally found at http://www.findmotive.com - a wee bit modified
function cropImage($nw, $nh, $source, $stype, $dest) {
$size = getimagesize($source);
$w = $size[0];
$h = $size[1];
switch($stype) {
	case 'image/gif':
	$simg = imagecreatefromgif($source);
	break;
	case 'image/jpeg':
	$simg = imagecreatefromjpeg($source); // this is line 1050
	break;
	case 'image/pjpeg':
	$simg = imagecreatefromjpeg($source);
	break;
	case 'image/png':
	$simg = imagecreatefrompng($source); // this is line 1056
	break;
}
$dimg = imagecreatetruecolor($nw, $nh);
$wm = $w/$nw;
$hm = $h/$nh;
$h_height = $nh/2;
$w_height = $nw/2;
if($wm> $hm) {
	$adjusted_width = $w / $hm;
	$half_width = $adjusted_width / 2;
	$int_width = $half_width - $w_height;
	imagecopyresampled($dimg,$simg,-$int_width,0,0,0,$adjusted_width,$nh,$w,$h);
}

elseif(($wm <$hm) || ($wm == $hm)) {
	$adjusted_height = $h / $wm;
	$half_height = $adjusted_height / 2;
	$int_height = $half_height - $h_height;
	imagecopyresampled($dimg,$simg,0,-$int_height,0,0,$nw,$adjusted_height,$w,$h);
}
else {
	imagecopyresampled($dimg,$simg,0,0,0,0,$nw,$nh,$w,$h);
}
imagejpeg($dimg,$dest,100);
return true;
} // end cropImage
?>

 

Settings read from phpinfo():

file_uploads On

memory_limit 8M

post_max_size 32M

upload_max_filesize 32M

 

SERVER_SOFTWARE Apache/2.0.59 (Unix) PHP/5.2.3 DAV/2

 

GD Support enabled

GD Version bundled (2.0.34 compatible)

 

What do I need to fix?

[BlueSkyIS]

memory_limit  8M

[tjodolv]

Ok. But why? 8M is quite a lot more than 1.7M ...?