php校验码生成--备忘
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