Can be 1, 2, 3, 4, 5 for built-in
fonts in latin2 encoding (where higher numbers corresponding to larger fonts) or any of your
own font identifiers registered with imageloadfont().
Return Values
Returns the width of the pixel
Examples
Example #1 Using imagefontwidth() on built-in fonts
<?php echo 'Font width: ' . imagefontwidth(4); ?>
The above example will output
something similar to:
Font width: 8
Example #2 Using imagefontwidth() together with imageloadfont()
<?php // Load a .gdf font $font = imageloadfont('anonymous.gdf');
echo 'Font width: ' . imagefontwidth($font); ?>
The above example will output
something similar to: