PHP校验码生成-备忘

PHP校验码生成--备忘

$val)
{
    if($i>0)
    {
        $wid += $val['width'];
    }
    imagestring($im, $val['font'], $offset_x + $wid, $val['offset'] + $offset_y, $val['char'], $val['color']);
    $i++;
}
switch($pixel_mode)
{
    case 1:
        $pixel_color  = ImageColorAllocate($im,
                                        mt_rand(50,255),
                                        mt_rand(50,255),
                                        mt_rand(50,255));
        // 干扰象素
        for($i=0;$i