imagecreatefromjpeg（）php [英] imagecreatefromjpeg() php

问题描述

我正在使用imagecreatefromjpeg（）函数合并两张图片..

I'm using imagecreatefromjpeg() function to merge two pictures..

现在我遇到的问题是当我使用服务器上的图片时，它工作得很好，当我使用来自其他网站的图片时，它不起作用。

now the problem which I'm facing is that when I use the pictures from my server, it works perfectly and when I use pictures from some other website, it doesn't work.

例如：当我使用这个PHP文件时 http://coolfbapps.in/test/merger.php 功能

For example: when I use this PHP file http://coolfbapps.in/test/merger.php with function

 imagecreatefrompng('http://coolfbapps.in/test/1.png');

由于图像位于我自己的服务器上，因此效果非常好

It works perfectly fine as the image is at my own server

但是当我改变这个功能时，我把一个不在我服务器上的图像链接，

but when I alter this function n put the link of an image which is not on my server,

。

  imagecreatefrompng('http://www.businesseconomics/Test.png');

它不起作用。 （图像文件不在我的服务器上）

it doesnt work. (the image file is not on my server)

请建议我替代此功能或解决方案，因为我想在Facebook应用中使用它..

please suggest me an alternative to this function or a solution as I want to use this with Facebook apps..

像file-get-contents这样的函数也显示相同的错误。我希望它不是服务器端问题..
allow_url_fopen已开启但
allow_url_include已关闭

Functions like file-get-contents are also showing the same error. I hope its not server end problem.. allow_url_fopen is on but allow_url_include is off

更新...实际代码。我用它来合并两张照片

 $dest = imagecreatefrompng('http://coolfbapps.in/test/1.png');

 $src = imagejpeg('http://img.allvoices.com/thumbs/image/111/111/75152279-pic.jpg');

 imagealphablending($dest, false);
 imagesavealpha($dest, true);

 imagecopymerge($dest, $src, 10, 9, 0, 0, 181, 180, 100); 

 header('Content-Type: image/png');
 imagepng($dest);

 imagedestroy($dest);
 imagedestroy($src);

推荐答案

而不是使用 file_get_content 您可以使用 cURL 来获取图像数据。这是一个资源：
http://php.net/manual/en/ book.curl.php

Instead of using file_get_content you can use cURL to get your image data. Here is a resource: http://php.net/manual/en/book.curl.php

获取html示例（图片也可以）：

Example with getting html ( images will also work ):

<?php    
    $ch = curl_init("http://img.allvoices.com/thumbs/image/111/111/75152279-pic.jpg");
    $fp = fopen("example_homepage.jpg", "w");

    curl_setopt($ch, CURLOPT_FILE, $fp);
    curl_setopt($ch, CURLOPT_HEADER, 0);

    curl_exec($ch);
    curl_close($ch);
    fclose($fp);

    $img = imagecreatefromjpeg("example_homepage.jpg");
?>

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