(PHP 4, PHP 5, PHP 7)
imagefontheight — Get font height
$font
) : intReturns the pixel height of a character in the specified font.
fontCan 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 height of the font.
Example #1 Using imagefontheight() on built-in fonts
<?php
echo 'Font height: ' . imagefontheight(4);
?>
The above example will output something similar to:
Font height: 16
Example #2 Using imagefontheight() together with imageloadfont()
<?php
// Load a .gdf font
$font = imageloadfont('anonymous.gdf');
echo 'Font height: ' . imagefontheight($font);
?>
The above example will output something similar to:
Font height: 43