Archief - PHP: imagecreatejpeg() memory problem

function createThumb($sfile,$dfile) 
{
	// the passed variables are string filenames, the source and the destination 
	$maxwidth=100;
	$maxheight=100; 

	$simg = LoadJpeg($sfile); 
	$currwidth=imagesx($simg); 
	$currheight=imagesy($simg); 
                      
	//set the dimensions of the thumbnail 
	if ($currheight>$currwidth*1.7) 
	{ 
		$zoom=$maxheight/$currheight; 
		$newheight=$maxheight; 
		$newwidth=$currwidth*$zoom; 
	} 
	else 
	{ 
		$zoom=$maxwidth/$currwidth; 
		$newwidth=$maxwidth; 
		$newheight=$currheight*$zoom; 
	} 

	//create the resource img for the thumbnail 
	$dimg = imagecreate($newwidth, $newheight); 
//HIER LOOPT HET FOUT

	//convert truecolor image resource to palette image resource (so we can count the colors...) 
	ImageTrueColorToPalette($simg, false, 256); 
	$palsize = ImageColorsTotal($simg); 
	for ($i = 0; $i<$palsize; $i++) 
	{ 
		$colors = ImageColorsForIndex($simg, $i); 
		ImageColorAllocate($dimg, $colors['red'], $colors['green'], $colors['blue']); 
	} 

	imagecopyresized($dimg, $simg, 0, 0, 0, 0, $newwidth, $newheight, $currwidth, $currheight); 
	imagejpeg($dimg,$dfile); 

	ImageDestroy($simg); 
	ImageDestroy($dimg); 

}