function.curl-multi-exec.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Run the sub-connections of the current cURL handle</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.curl-multi-close.html">curl_multi_close</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.curl-multi-getcontent.html">curl_multi_getcontent</a></div> <div class="up"><a href="ref.curl.html">cURL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.curl-multi-exec" class="refentry"> <div class="refnamediv"> <h1 class="refname">curl_multi_exec</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">curl_multi_exec</span> — <span class="dc-title">Run the sub-connections of the current cURL handle</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>curl_multi_exec</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$mh</tt></span> , <span class="methodparam"><span class="type">int</span> <tt class="parameter reference">&$still_running</tt></span> )</div> <p class="para rdfs-comment"> Processes each of the handles in the stack. This method can be called whether or not a handle needs to read or write data. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt><span class="term"><i><tt class="parameter">mh</tt></i></span><dd><p class="para">A cURL multi handle returned by <a href="function.curl-multi-init.html" class="function">curl_multi_init()</a>.</p></dd></dt> <dt> <span class="term"><i><tt class="parameter">still_running</tt></i></span> <dd> <p class="para"> A reference to a flag to tell whether the operations are still running. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> A cURL code defined in the cURL <a href="curl.constants.html" class="link">Predefined Constants</a>. </p> <blockquote><p><b class="note">Note</b>: This only returns errors regarding the whole multi stack. There might still have occurred problems on individual transfers even when this function returns <b><tt>CURLM_OK</tt></b>. <br /> </p></blockquote> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>curl_multi_exec()</b> example</b></p> <div class="example-contents"><p> This example will create two cURL handles, add them to a multi handle, and then run them in parallel. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// create both cURL resources<br /></span><span style="color: #0000BB">$ch1 </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_init</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$ch2 </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_init</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// set URL and other appropriate options<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch1</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_URL</span><span style="color: #007700">, </span><span style="color: #DD0000">"http://lxr.php.net/"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch1</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_HEADER</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch2</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_URL</span><span style="color: #007700">, </span><span style="color: #DD0000">"http://www.php.net/"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_setopt</span><span style="color: #007700">(</span><span style="color: #0000BB">$ch2</span><span style="color: #007700">, </span><span style="color: #0000BB">CURLOPT_HEADER</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//create the multiple cURL handle<br /></span><span style="color: #0000BB">$mh </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_multi_init</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">//add the two handles<br /></span><span style="color: #0000BB">curl_multi_add_handle</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">,</span><span style="color: #0000BB">$ch1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_multi_add_handle</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">,</span><span style="color: #0000BB">$ch2</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$active </span><span style="color: #007700">= </span><span style="color: #0000BB">null</span><span style="color: #007700">;<br /></span><span style="color: #FF8000">//execute the handles<br /></span><span style="color: #007700">do {<br /> </span><span style="color: #0000BB">$mrc </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_multi_exec</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">, </span><span style="color: #0000BB">$active</span><span style="color: #007700">);<br />} while (</span><span style="color: #0000BB">$mrc </span><span style="color: #007700">== </span><span style="color: #0000BB">CURLM_CALL_MULTI_PERFORM</span><span style="color: #007700">);<br /><br />while (</span><span style="color: #0000BB">$active </span><span style="color: #007700">&& </span><span style="color: #0000BB">$mrc </span><span style="color: #007700">== </span><span style="color: #0000BB">CURLM_OK</span><span style="color: #007700">) {<br /> if (</span><span style="color: #0000BB">curl_multi_select</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">) != -</span><span style="color: #0000BB">1</span><span style="color: #007700">) {<br /> do {<br /> </span><span style="color: #0000BB">$mrc </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_multi_exec</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">, </span><span style="color: #0000BB">$active</span><span style="color: #007700">);<br /> } while (</span><span style="color: #0000BB">$mrc </span><span style="color: #007700">== </span><span style="color: #0000BB">CURLM_CALL_MULTI_PERFORM</span><span style="color: #007700">);<br /> }<br />}<br /><br /></span><span style="color: #FF8000">//close the handles<br /></span><span style="color: #0000BB">curl_multi_remove_handle</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">, </span><span style="color: #0000BB">$ch1</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_multi_remove_handle</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">, </span><span style="color: #0000BB">$ch2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">curl_multi_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$mh</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.curl-multi-init.html" class="function" rel="rdfs-seeAlso">curl_multi_init()</a></li> <li class="member"><a href="function.curl-exec.html" class="function" rel="rdfs-seeAlso">curl_exec()</a></li> </ul> </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.curl-multi-close.html">curl_multi_close</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.curl-multi-getcontent.html">curl_multi_getcontent</a></div> <div class="up"><a href="ref.curl.html">cURL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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