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PHP : Function Reference : Image Functions : imagechar

imagechar

Draw a character horizontally (PHP 4, PHP 5)
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

Example987.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:


Related Examples ( Source code ) » imagechar



Code Examples / Notes » imagechar

sw

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);
?>


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getimagesize
image_type_to_extension
image_type_to_mime_type
image2wbmp
imagealphablending
imageantialias
imagearc
imagechar
imagecharup
imagecolorallocate
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imagecreatefromgif
imagecreatefromjpeg
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imagecreatetruecolor
imagedashedline
imagedestroy
imageellipse
imagefill
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imagefilledrectangle
imagefilltoborder
imagefilter
imagefontheight
imagefontwidth
imageftbbox
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imagepsencodefont
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imagesetbrush
imagesetpixel
imagesetstyle
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imagesettile
imagestring
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imagetruecolortopalette
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