<?php
require_once?'string.func.php';
$width?=?80;
$height?=?28;
$image?=?imagecreatetruecolor($width,?$height);
$white?=?imagecolorallocate($image,?255,?255,?255);
$black?=?imagecolorallocate($image,?0,?0,?0);

imagefilledrectangle($image,?1,?1,?$width-2,?$height-2,?$white);
$type?=?1;
$length?=?4;
$chars?=?builRandomString($type,$length);
$sess_name?=?"verify";
$_SESSION[$sess_name]?=?$chars;
$fontfiles?=?array("msyh.ttc","msyhbd.ttc","msyhl.ttc","simhei.ttf","simkai.ttf","simsun.ttc");
for($i=0;$length;$i++){
????$size?=?mt_rand(14,?18);
????$angle?=?mt_rand(-15,?15);
????$x?=?5?+?$i?*?$size;
????$y?=?mt_rand(20,?26);
????$fontfile?=?"../fonts/".$fontfiles[mt_rand(0,?count($fontfiles)-1)];
????$color?=?imagecolorallocate($image,?mt_rand(50,?90),?mt_rand(80,?200),?mt_rand(90,?180));
????$text?=?substr($chars,?$i,1);
????imagettftext($image,$size,$angle,$x,$y,$color,$fontfile,$text);
}
header("conten-type:image/gif");
imagegif($image);
imagedestroy($image);