Mega Code Archive
Generate image with random number
<![CDATA[
<?php
/**
* imgsecuregen() Generate an image with a random number, usefull for bot protection.
*/
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);
?>
]]>