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puremango dot co dot uk at gmail dot com
19 years ago
a function that is faster than ImageFontWidth for certain uses:

<?
function ImageFontWidthByFilename($filename)
{
$handle = @fopen($font_locations[$i],"r");
$c_wid = @fread($handle,11);
@fclose($handle);
return(ord($c_wid{8})+ord($c_wid{9})+ord($c_wid{10})+ord($c_wid{11}));
}

echo "./font.gdf is ".ImageFontWidthByFilename("./font.gdf")." pixels wide";

?>

reading the widths of 5 different fonts, 500 times, ImageFontWidth took an average of ~0.004 seconds per 5 reads, my function takes ~0.0003 per 5.

The reason is that ImageFontWidth requires a call to ImageLoadFont, but if for some reason you won't need to load the font, just find out the width, this is the function for you :-)

more such wonders at http://puremango.co.uk

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