我是一个新手,碰到问题如下,
1.php
<?
$srcurl = "http://*******/3.php";
$tempfilename = "test.png";
$dynpage = fopen($srcurl, 'r');
$htmldata = fread($dynpage, 1024);
fclose($dynpage);
$tempfile = fopen($tempfilename, 'w');
fwrite($tempfile, $htmldata);
fclose($tempfile);
?>
3.php
<?php
session_start();
Header("Content-type: image/png");
srand(microtime() * 100000);
$login_check_number = strval(rand("1111","9999"));
session_register("login_check_number");

$h_img = imagecreate(40,17);
$c_black = ImageColorAllocate($h_img, 0,0,0);
$c_white = ImageColorAllocate($h_img, 255,255,255);
imageline($h_img, 1, 1, 350, 25, $c_black);
imagearc($h_img, 200, 15, 20, 20, 35, 190, $c_white);
imagestring($h_img, 5, 2, 1, $login_check_number, $c_white);
ImagePng($h_img);
ImageDestroy($h_img);

die();
?>
为什么执行1.php仅公只能生成图片.而没有生成session????
在线求助~~~~~~~~~~~~~~~~~