Question

我有一个PHP脚本，它打印一个随机数，用作验证码。然而，对于我的生活，我无法弄清楚为什么它在一个域上工作而在另一个域上工作，即使服务器具有相同的确切规格。

显示验证码： http://www.unitedfleetparts.com/php-/captcha_code.php

显示NOTHING，即使它是完全相同的脚本： http://www.uatparts.com/php-/captcha_code.php

请帮我弄清楚如何让这个PHP脚本在我的第二个域上运行。任何帮助表示赞赏。

PHP脚本：

<?php
session_start();
$image_width = 120;
$image_height = 40;
$characters_on_image = 6;
$font = './monofont.ttf';

$possible_letters = '23456789bcdfghjkmnpqrstvwxyz';
$random_dots = 0;
$random_lines = 20;
$captcha_text_color="0x142864";
$captcha_noice_color = "0x142864";

$code = '';

$i = 0;
while ($i < $characters_on_image) { 
$code .= substr($possible_letters, mt_rand(0, strlen($possible_letters)-1), 1);
$i++;
}

$font_size = $image_height * 0.75;
$image = @imagecreate($image_width, $image_height);

$background_color = imagecolorallocate($image, 255, 255, 255);

$arr_text_color = hexrgb($captcha_text_color);
$text_color = imagecolorallocate($image, $arr_text_color['red'], 
    $arr_text_color['green'], $arr_text_color['blue']);

$arr_noice_color = hexrgb($captcha_noice_color);
$image_noise_color = imagecolorallocate($image, $arr_noice_color['red'], 
        $arr_noice_color['green'], $arr_noice_color['blue']);

for( $i=0; $i<$random_dots; $i++ ) {
imagefilledellipse($image, mt_rand(0,$image_width),
 mt_rand(0,$image_height), 2, 3, $image_noise_color);
}

for( $i=0; $i<$random_lines; $i++ ) {
imageline($image, mt_rand(0,$image_width), mt_rand(0,$image_height),
 mt_rand(0,$image_width), mt_rand(0,$image_height), $image_noise_color);
}

$textbox = imagettfbbox($font_size, 0, $font, $code); 
$x = ($image_width - $textbox[4])/2;
$y = ($image_height - $textbox[5])/2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $font , $code);

header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
$_SESSION['6_letters_code'] = $code;

function hexrgb ($hexstr)
{
  $int = hexdec($hexstr);

  return array("red" => 0xFF & ($int >> 0x10),
               "green" => 0xFF & ($int >> 0x8),
               "blue" => 0xFF & $int);
}
?>

PHP脚本在一个域上运行但不在另一个域上运行

0 个答案: