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imgsecuregen() Generate an image with a random number, usefull for bot protection.
@param integer $size
@author Ben Yacoub Hatem <hatem@php.net>
@copyright Copyright PHP Tunisie (c) 2004
@version $Id$ - 12/06/2004 07:02:09 - securelogin.php
@access public
@return
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<?php
function imgsecuregen($size = 6){
$width = 11*$size;
$height = 30;
$string = "";
for($i = 1; $i <= $size; $i++){
$string .= rand (0,9)."";
} // for
$im = ImageCreate($width, $height);
$bg = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);
$grey = imagecolorallocate($im, 170, 170, 170);
imagerectangle($im,0, 0, $width-1, $height-1, $grey);
imagestring($im, 5, $size, 5, $string, $black);
imagepng($im);
imagedestroy($im);
}
imgsecuregen(10);
?> | |
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| A damaged image generator (class) for validating text.
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