验证码问题
<?php
require_once 'string.func.php';
//function verifyImage(){
$width = 80;
$height = 20;
$image = imagecreatetruecolor($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;
$chars = buildRandomString($type,$length);
$sess_name = "verify";
$_SESSION[$sess_name] = $chars;
$fontfile = array("DENG.TTF","DENGB.TTF","DENGL.TTF","MSYH.TTC","SIMFANG.TTF","SIMHEI.TTF");
for ($i = 0;$i < $length;$i++){
$size = mt_rand(14, 18);
$angle = mt_rand(-15, 15);
$x = 5+$i*$size;
$y = mt_rand(20, 26);
$fontfile = "../fonts/".$fontfile[mt_rand(0, count($fontfile)-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, $text);
}
//}
header("Content-Type:image/png");
imagegif($image);
imagedestroy($image);字体文件读取报错,而且提示无法修改标题信息!请大神帮忙解答!谢谢(๑ó﹏ò๑)!