📄 function.stream-set-timeout.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>Set timeout period on a stream</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.stream-set-blocking.html">stream_set_blocking</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.stream-set-write-buffer.html">stream_set_write_buffer</a></div> <div class="up"><a href="ref.stream.html">Stream Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.stream-set-timeout" class="refentry"> <div class="refnamediv"> <h1 class="refname">stream_set_timeout</h1> <p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">stream_set_timeout</span> — <span class="dc-title">Set timeout period on a stream</span></p> </div> <div class="refsect1 unknown"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>stream_set_timeout</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$stream</tt></span> , <span class="methodparam"><span class="type">int</span> <tt class="parameter">$seconds</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$microseconds</tt></span> ] )</div> <p class="para rdfs-comment"> Sets the timeout value on <i><tt class="parameter">stream</tt></i>, expressed in the sum of <i><tt class="parameter">seconds</tt></i> and <i><tt class="parameter">microseconds</tt></i>. Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> <p class="para"> When the stream times out, the 'timed_out' key of the array returned by <a href="function.stream-get-meta-data.html" class="function">stream_get_meta_data()</a> is set to <b><tt>TRUE</tt></b>, although no error/warning is generated. </p> <p class="para"> <div class="example"> <p><b>Example #1 <b>stream_set_timeout()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fsockopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"www.example.com"</span><span style="color: #007700">, </span><span style="color: #0000BB">80</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$fp</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Unable to open\n"</span><span style="color: #007700">;<br />} else {<br /><br /> </span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #DD0000">"GET / HTTP/1.0\r\n\r\n"</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">stream_set_timeout</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">$res </span><span style="color: #007700">= </span><span style="color: #0000BB">fread</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">2000</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$info </span><span style="color: #007700">= </span><span style="color: #0000BB">stream_get_meta_data</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /><br /> if (</span><span style="color: #0000BB">$info</span><span style="color: #007700">[</span><span style="color: #DD0000">'timed_out'</span><span style="color: #007700">]) {<br /> echo </span><span style="color: #DD0000">'Connection timed out!'</span><span style="color: #007700">;<br /> } else {<br /> echo </span><span style="color: #0000BB">$res</span><span style="color: #007700">;<br /> }<br /><br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> <blockquote><p><b class="note">Note</b>: <span class="simpara"> As of PHP 4.3, this function can (potentially) work on any kind of stream. In PHP 4.3, socket based streams are still the only kind supported in the PHP core, although streams from other extensions may support this function. </span> </p></blockquote> <blockquote><p><b class="note">Note</b>: This function doesn't work with advanced operations like <a href="function.stream-socket-recvfrom.html" class="function">stream_socket_recvfrom()</a>, use <a href="function.stream-select.html" class="function">stream_select()</a> with timeout parameter instead. <br /> </p></blockquote> <p class="para"> This function was previously called as <b>set_socket_timeout()</b> and later <a href="function.socket-set-timeout.html" class="function">socket_set_timeout()</a> but this usage is deprecated. </p> <p class="para"> See also <a href="function.fsockopen.html" class="function">fsockopen()</a> and <a href="function.fopen.html" class="function">fopen()</a>. </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.stream-set-blocking.html">stream_set_blocking</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.stream-set-write-buffer.html">stream_set_write_buffer</a></div> <div class="up"><a href="ref.stream.html">Stream 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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