(PHP 4, PHP 5, PHP 7)
imageloadfont — Load a new font
$file
)imageloadfont() loads a user-defined bitmap and returns its identifier.
fileThe 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.
| 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. |
The font identifier which is always bigger than 5 to avoid conflicts with
built-in fonts or FALSE on errors.
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);
?>