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Load a new font

imageloadfont

(PHP 4, PHP 5)

imageloadfont — Load a new font

Description

int imageloadfont ( string $file )

imageloadfont() loads a user-defined bitmap and returns its identifier.

Parameters

file

The font file format is currently binary and architecture dependent. This means you should generate the font files on the same type of CPU as the machine you are running PHP on.

Font file format
byte position C data type description
byte 0-3 int number of characters in the font
byte 4-7 int value of first character in the font (often 32 for space)
byte 8-11 int pixel width of each character
byte 12-15 int pixel height of each character
byte 16- char array with character data, one byte per pixel in each character, for a total of (nchars*width*height) bytes.

Return Values

The font identifier which is always bigger than 5 to avoid conflicts with built-in fonts or FALSE on errors.

Examples

Example #1 imageloadfont() usage example

<?php
// Create a new image instance
$im = imagecreatetruecolor(50, 20);
$black = imagecolorallocate($im, 0, 0, 0);
$white = imagecolorallocate($im, 255, 255, 255);

// Make the background white
imagefilledrectangle($im, 0, 0, 49, 19, $white);

// Load the gd font and write 'Hello'
$font = imageloadfont('./04b.gdf');
imagestring($im, $font, 0, 0, 'Hello', $black);

// Output to browser
header('Content-type: image/png');

imagepng($im);
imagedestroy($im);
?>

See Also