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<channel>
	<title>71街 &#187; curl</title>
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	<description>杜工的技术博客</description>
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		<item>
		<title>简评file_get_contents与curl 效率及稳定性</title>
		<link>http://www.71j.cn/archives/140</link>
		<comments>http://www.71j.cn/archives/140#comments</comments>
		<pubDate>Sat, 06 Feb 2010 09:26:48 +0000</pubDate>
		<dc:creator>杜工</dc:creator>
				<category><![CDATA[感悟]]></category>
		<category><![CDATA[curl]]></category>
		<category><![CDATA[php]]></category>

		<guid isPermaLink="false">http://71j.cn/?p=140</guid>
		<description><![CDATA[做过好多抓取别家网站内容的产品，习惯了使用方便快捷的file_get_contents函数，但是总是会遇到获取失败的问题，尽管按照手册中的例子设置了超时，可多数时候不会奏效： $config['context'] = strea... ]]></description>
			<content:encoded><![CDATA[<p>做过好多抓取别家网站内容的产品，习惯了使用方便快捷的file_get_contents函数，但是总是会遇到获取失败的问题，尽管按照手册中的例子设置了超时，可多数时候不会奏效：</p>
<p>$config['context'] = stream_context_create(array(&#8216;http&#8217; =&gt; array(&#8216;method&#8217; =&gt; “GET”,<br />
   &#8217;timeout&#8217; =&gt; 5//这个超时时间不稳定，经常不奏效<br />
   )<br />
  ));</p>
<p>这时候，看一下服务器的连接池，会发现一堆类似的错误，让你头疼万分：</p>
<p>file_get_contents(<a href="http://www.tianya.cn/techforum/content/16/645728.shtml">http://***</a>): failed to open stream&#8230;</p>
<p>不得已，安装了curl库，写了一个函数替换：</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">function</span> curl_file_get_contents<span style="color: #009900;">&#40;</span><span style="color: #000088;">$durl</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#123;</span>
   <span style="color: #000088;">$ch</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_init</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_URL<span style="color: #339933;">,</span> <span style="color: #000088;">$durl</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_TIMEOUT<span style="color: #339933;">,</span> <span style="color: #cc66cc;">5</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_USERAGENT<span style="color: #339933;">,</span> _USERAGENT_<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_REFERER<span style="color: #339933;">,</span>_REFERER_<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_RETURNTRANSFER<span style="color: #339933;">,</span> <span style="color: #cc66cc;">1</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #000088;">$r</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_exec</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #990000;">curl_close</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
   <span style="color: #b1b100;">return</span> <span style="color: #000088;">$r</span><span style="color: #339933;">;</span>
 <span style="color: #009900;">&#125;</span></pre></div></div>

<p>如此，除了真正的网络问题外，没再出现任何问题。</p>
<p>这是别人做过的关于curl和file_get_contents的测试：</p>
<p>file_get_contents抓取google.com需用秒数：</p>
<p>2.31319094<br />
2.30374217<br />
2.21512604<br />
3.30553889<br />
2.30124092</p>
<p>curl使用的时间：</p>
<p>0.68719101<br />
0.64675593<br />
0.64326<br />
0.81983113<br />
0.63956594</p>
<p>差距很大吧？呵呵，从我使用的经验来说，这两个工具不只是速度有差异，稳定性也相差很大。建议对网络数据抓取稳定性要求比较高的朋友使用上面的curl_file_get_contents函数，不但稳定速度快，还能假冒浏览器欺骗目标地址哦！</p>
]]></content:encoded>
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		</item>
		<item>
		<title>一个抓取网站内容的函数，支持301 302跳转</title>
		<link>http://www.71j.cn/archives/112</link>
		<comments>http://www.71j.cn/archives/112#comments</comments>
		<pubDate>Mon, 18 Jan 2010 08:49:04 +0000</pubDate>
		<dc:creator>杜工</dc:creator>
				<category><![CDATA[感悟]]></category>
		<category><![CDATA[curl]]></category>
		<category><![CDATA[php]]></category>
		<category><![CDATA[防盗链]]></category>

		<guid isPermaLink="false">http://71j.cn/?p=112</guid>
		<description><![CDATA[我们在抓取网站内容的时候，经常遇到稀奇古怪的防盗链，比如上次碰到一个站的图片地址是假的，访问后要301跳转一次才到真正的图片路径，这个真实的路径又做了防盗措施，判断referer是不... ]]></description>
			<content:encoded><![CDATA[<p>我们在抓取网站内容的时候，经常遇到稀奇古怪的防盗链，比如上次碰到一个站的图片地址是假的，访问后要301跳转一次才到真正的图片路径，这个真实的路径又做了防盗措施，判断referer是不是上个假的图片地址。用curl试了几次，终于整出一个函数，效果不错。</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000088;">$curl_loops</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span><span style="color: #666666; font-style: italic;">//避免死了循环必备</span>
<span style="color: #000088;">$curl_max_loops</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">3</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #000000; font-weight: bold;">function</span> curl_get_file_contents<span style="color: #009900;">&#40;</span><span style="color: #000088;">$url</span><span style="color: #339933;">,</span> <span style="color: #000088;">$referer</span><span style="color: #339933;">=</span><span style="color: #0000ff;">''</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
<span style="color: #000000; font-weight: bold;">global</span> <span style="color: #000088;">$curl_loops</span><span style="color: #339933;">,</span> <span style="color: #000088;">$curl_max_loops</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$useragent</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">&quot;Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)&quot;</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$curl_loops</span><span style="color: #339933;">++</span> <span style="color: #339933;">&gt;=</span> <span style="color: #000088;">$curl_max_loops</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
  <span style="color: #000088;">$curl_loops</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
  <span style="color: #b1b100;">return</span> <span style="color: #009900; font-weight: bold;">false</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span> 
<span style="color: #000088;">$ch</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_init</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_URL<span style="color: #339933;">,</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>?<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_HEADER<span style="color: #339933;">,</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_USERAGENT<span style="color: #339933;">,</span> <span style="color: #000088;">$useragent</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_RETURNTRANSFER<span style="color: #339933;">,</span> <span style="color: #009900; font-weight: bold;">true</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_REFERER<span style="color: #339933;">,</span> <span style="color: #000088;">$referer</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$data</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_exec</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$ret</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$data</span><span style="color: #339933;">;</span>
<span style="color: #990000;">list</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$header</span><span style="color: #339933;">,</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">explode</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;<span style="color: #000099; font-weight: bold;">\r</span><span style="color: #000099; font-weight: bold;">\n</span><span style="color: #000099; font-weight: bold;">\r</span><span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span> <span style="color: #000088;">$data</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">2</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$http_code</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_getinfo</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLINFO_HTTP_CODE<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$last_url</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_getinfo</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLINFO_EFFECTIVE_URL<span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_close</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #000088;">$http_code</span> <span style="color: #339933;">==</span> <span style="color: #cc66cc;">301</span> <span style="color: #339933;">||</span> <span style="color: #000088;">$http_code</span> <span style="color: #339933;">==</span> <span style="color: #cc66cc;">302</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
  <span style="color: #000088;">$matches</span> <span style="color: #339933;">=</span> <span style="color: #990000;">array</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #990000;">preg_match</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">'/Location:(.*?)\n/'</span><span style="color: #339933;">,</span> <span style="color: #000088;">$header</span><span style="color: #339933;">,</span> <span style="color: #000088;">$matches</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #000088;">$url</span> <span style="color: #339933;">=</span> <span style="color: #339933;">@</span><span style="color: #990000;">parse_url</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">trim</span><span style="color: #009900;">&#40;</span><span style="color: #990000;">array_pop</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$matches</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #b1b100;">if</span> <span style="color: #009900;">&#40;</span><span style="color: #339933;">!</span><span style="color: #000088;">$url</span><span style="color: #009900;">&#41;</span> <span style="color: #009900;">&#123;</span>
  ?<span style="color: #000088;">$curl_loops</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
  ?<span style="color: #b1b100;">return</span> <span style="color: #000088;">$data</span><span style="color: #339933;">;</span>
  <span style="color: #009900;">&#125;</span> 
  <span style="color: #000088;">$new_url</span> <span style="color: #339933;">=</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'scheme'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">.</span> <span style="color: #0000ff;">'://'</span> <span style="color: #339933;">.</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'host'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">.</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'path'</span><span style="color: #009900;">&#93;</span>
   <span style="color: #339933;">.</span> <span style="color: #009900;">&#40;</span><span style="color: #990000;">isset</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$url</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'query'</span><span style="color: #009900;">&#93;</span><span style="color: #009900;">&#41;</span> ? <span style="color: #0000ff;">'?'</span> <span style="color: #339933;">.</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#91;</span><span style="color: #0000ff;">'query'</span><span style="color: #009900;">&#93;</span> <span style="color: #339933;">:</span> <span style="color: #0000ff;">''</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #000088;">$new_url</span> <span style="color: #339933;">=</span> <span style="color: #990000;">stripslashes</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$new_url</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #b1b100;">return</span> curl_get_file_contents<span style="color: #009900;">&#40;</span><span style="color: #000088;">$new_url</span><span style="color: #339933;">,</span> <span style="color: #000088;">$last_url</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span> <span style="color: #b1b100;">else</span> <span style="color: #009900;">&#123;</span>
  <span style="color: #000088;">$curl_loops</span> <span style="color: #339933;">=</span> <span style="color: #cc66cc;">0</span><span style="color: #339933;">;</span>
  <span style="color: #990000;">list</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$header</span><span style="color: #339933;">,</span> <span style="color: #000088;">$data</span><span style="color: #009900;">&#41;</span> <span style="color: #339933;">=</span> <span style="color: #990000;">explode</span><span style="color: #009900;">&#40;</span><span style="color: #0000ff;">&quot;<span style="color: #000099; font-weight: bold;">\r</span><span style="color: #000099; font-weight: bold;">\n</span><span style="color: #000099; font-weight: bold;">\r</span><span style="color: #000099; font-weight: bold;">\n</span>&quot;</span><span style="color: #339933;">,</span> <span style="color: #000088;">$ret</span><span style="color: #339933;">,</span> <span style="color: #cc66cc;">2</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
  <span style="color: #b1b100;">return</span> <span style="color: #000088;">$data</span><span style="color: #339933;">;</span>
<span style="color: #009900;">&#125;</span> 
<span style="color: #009900;">&#125;</span></pre></div></div>

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		</item>
		<item>
		<title>php curl cookie 存取示例</title>
		<link>http://www.71j.cn/archives/101</link>
		<comments>http://www.71j.cn/archives/101#comments</comments>
		<pubDate>Wed, 02 Dec 2009 05:17:53 +0000</pubDate>
		<dc:creator>杜工</dc:creator>
				<category><![CDATA[分享]]></category>
		<category><![CDATA[cookie]]></category>
		<category><![CDATA[curl]]></category>
		<category><![CDATA[php]]></category>

		<guid isPermaLink="false">http://71j.cn/?p=101</guid>
		<description><![CDATA[好多人发来消息询问curl存取cookie文件的问题，杜工并不觉得这是个难点，因为只看手册就可以很容易把握。下面给个例子，看完后就全都明了了： &#60;?php $cookie_jar_index = 'cookie.txt'; &#160; $url = &#... ]]></description>
			<content:encoded><![CDATA[<p>好多人发来消息询问curl存取cookie文件的问题，杜工并不觉得这是个难点，因为只看手册就可以很容易把握。下面给个例子，看完后就全都明了了：</p>

<div class="wp_syntax"><div class="code"><pre class="php" style="font-family:monospace;"><span style="color: #000000; font-weight: bold;">&lt;?php</span>
<span style="color: #000088;">$cookie_jar_index</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">'cookie.txt'</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #000088;">$url</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">&quot;http://www.71j.cn/perl/login.pl&quot;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$params</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">&quot;username=dudu&amp;password=****&quot;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$ch</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_init</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_URL<span style="color: #339933;">,</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_COOKIEJAR<span style="color: #339933;">,</span> <span style="color: #000088;">$cookie_jar_index</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_POST<span style="color: #339933;">,</span> <span style="color: #cc66cc;">1</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #339933;">,</span> CURLOPT_POSTFIELDS<span style="color: #339933;">,</span> <span style="color: #000088;">$params</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> 
<span style="color: #666666; font-style: italic;">//curl_setopt($ch, CURLOPT_NOBODY, 1);//这个不能打开，否则无法生成cookie文件</span>
<span style="color: #990000;">ob_start</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_exec</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_close</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">ob_clean</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #000088;">$url</span> <span style="color: #339933;">=</span> <span style="color: #0000ff;">&quot;http://www.71j.cn/perl/myfavorites.pl&quot;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$ch2</span> <span style="color: #339933;">=</span> <span style="color: #990000;">curl_init</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch2</span><span style="color: #339933;">,</span> CURLOPT_URL<span style="color: #339933;">,</span> <span style="color: #000088;">$url</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_setopt</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch2</span><span style="color: #339933;">,</span> CURLOPT_COOKIEFILE<span style="color: #339933;">,</span> <span style="color: #000088;">$cookie_jar_index</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">ob_start</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_exec</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch2</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #990000;">curl_close</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$ch2</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
<span style="color: #000088;">$rs</span> <span style="color: #339933;">=</span> <span style="color: #990000;">ob_get_contents</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span> <span style="color: #666666; font-style: italic;">//$rs就是返回的内容</span>
<span style="color: #990000;">ob_clean</span><span style="color: #009900;">&#40;</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #990000;">print_r</span><span style="color: #009900;">&#40;</span><span style="color: #000088;">$rs</span><span style="color: #009900;">&#41;</span><span style="color: #339933;">;</span>
&nbsp;
<span style="color: #000000; font-weight: bold;">?&gt;</span></pre></div></div>

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