imagearc
For the sake of completeness, here is an example for imagechar.
The base-image automatically adjusts to the size and the height of the given string. Using the rand()-function the y-position of each char is slightly varied with every loop-run. You can easily rewrite the script to use a randomly generated string - the one given here just serves as an example.
<?php
$string = '1 2 3 4 5 6 7 8 9 A B C D E F G';
$font_size = 5;
$width=imagefontwidth($font_size)*strlen($string);
$height=imagefontheight($font_size)*2;
$img = imagecreate($width,$height);
$bg = imagecolorallocate($img,225,225,225);
$black = imagecolorallocate($img,0,0,0);
$len=strlen($string);
for($i=0;$i<$len;$i++)
{
$xpos=$i*imagefontwidth($font_size);
$ypos=rand(0,imagefontheight($font_size));
imagechar($img,$font_size,$xpos,$ypos,$string,$black);
$string = substr($string,1);
}
header("Content-Type: image/gif");
imagegif($img);
imagedestroy($img);
?>
imagechar
(PHP 4, PHP 5)
imagechar — Draw a character horizontally
Description
bool imagechar
( resource $image
, int $font
, int $x
, int $y
, string $c
, int $color
)
imagechar() draws the first character of c in the image identified by image with its upper-left at x ,y (top left is 0, 0) with the color color .
Parameters
- image
-
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
- 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().
- x
-
x-coordinate of the start.
- y
-
y-coordinate of the start.
- c
-
The character to draw.
- color
-
A color identifier created with imagecolorallocate().
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 imagechar() example
<?php
$im = imagecreate(100, 100);
$string = 'PHP';
$bg = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
// prints a black "P" in the top left corner
imagechar($im, 1, 0, 0, $string, $black);
header('Content-type: image/png');
imagepng($im);
?>
The above example will output something similar to:
add a note
User Contributed Notesimagechar
sw at profilschmiede dot de
20-Jun-2005 06:35
20-Jun-2005 06:35