(PHP 4, PHP 5, PHP 7)
imagefontwidth — Get font width
imagefontwidth ( int $font ) : int
Returns the pixel width of a character in font.
font
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().
Returns the pixel width of the font.
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:
Font width: 23
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https://www.php.net/manual/en/function.imagefontwidth.php