使用PHP将Google图表图片保存到文件 [英] Saving Google Chart image to file using PHP

问题描述

我有一个脚本为客户生成Google图表图片。它在HTML中工作正常显示，但我现在需要保存每个图表在本地作为.png。

I have a script which generates Google Chart images for clients. It works fine displaying in HTML but I now need to save each chart locally as a .png.

如果我尝试：

$ imageData = file_get_contents（$ url）;
file_put_contents（'C：/xampp/htdocs/image.png'，$ imageData）;

/ p>

then I always receive

[function.file-get-contents]: failed to open stream: HTTP request failed! HTTP/1.0 400

脚本适用于正常图像，

The script works fine for normal images, but not Google charts. Same result if I use cURL to save the image too.

我的Google图表$ url的一个例子如下。我已经勾出冒号和管道符号，但它没有解决这个问题：

An example of my Google chart $url is below. I've hexed out the colons and pipe symbols but it did not fix the issue:

http://chart.apis.google.com/chart?cht=lc&chxt=x,y&chs=700x400&chco=76A4FB,FF9900&chg=0,8.3333333&chdl=Visits|Unique%20visits&chls=3|3&chma=40,20,20,30&chxr=1,0,33411&chds=0,33411&chd=t%3A33411,33411,33411,33411,33411,33411,33411,33411,33411,33411,33411,33411|33411,33411,33411,33411,33411,33411,33411,33411,33411,33411,33411,33411&chxl=0%3A|Jan-10|Feb-10|Mar-10|Apr-10|May-10|Jun-10|Jul-10|Aug-10|Sep-10|Oct-10|Nov-10|Dec-10

推荐答案

CURL示例：

<?php
    $ch = curl_init("www.example.com/curl.php?option=test");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $output = curl_exec($ch);       
    curl_close($ch);
    echo $output; ?>

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