php man page for imagefontheight

IMAGEFONTHEIGHT(3)							 1							IMAGEFONTHEIGHT(3)

imagefontheight - Get font height

SYNOPSIS
       int imagefontheight (int  $font)

DESCRIPTION
	Returns the pixel height of a character in the specified font.

PARAMETERS
	      o $
		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(3).

RETURN VALUES
	Returns the pixel height of the font.

EXAMPLES
       Example #1

	      Using imagefontheight(3) 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(3) together with imageloadfont(3)

	      <?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

SEE ALSO
       imagefontwidth(3), imageloadfont(3).

PHP Documentation Group 													IMAGEFONTHEIGHT(3)