📄 function.stream-get-wrappers.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>Retrieve list of registered streams</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-get-transports.html">stream_get_transports</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.stream-notification-callback.html">stream_notification_callback</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-get-wrappers" class="refentry"> <div class="refnamediv"> <h1 class="refname">stream_get_wrappers</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">stream_get_wrappers</span> — <span class="dc-title">Retrieve list of registered streams</span></p> </div> <div class="refsect1 unknown"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>stream_get_wrappers</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> Returns an indexed array containing the name of all stream wrappers available on the running system. </p> <p class="para"> <div class="example"> <p><b>Example #1 <b>stream_get_wrappers()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">stream_get_wrappers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Array( [0] => php [1] => file [2] => http [3] => ftp [4] => compress.bzip2 [5] => compress.zlib)</pre></div> </pre></div> </div> </p> <p class="para"> <div class="example"> <p><b>Example #2 Checking for the existence of a stream wrapper</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// check for the existence of the bzip2 stream wrapper<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">in_array</span><span style="color: #007700">(</span><span style="color: #DD0000">'compress.bzip2'</span><span style="color: #007700">, </span><span style="color: #0000BB">stream_get_wrappers</span><span style="color: #007700">())) {<br /> echo </span><span style="color: #DD0000">'compress.bzip2:// support enabled.'</span><span style="color: #007700">;<br />} else {<br /> echo </span><span style="color: #DD0000">'compress.bzip2:// support not enabled.'</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> <p class="para"> See also <a href="function.stream-wrapper-register.html" class="function">stream_wrapper_register()</a>. </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.stream-get-transports.html">stream_get_transports</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.stream-notification-callback.html">stream_notification_callback</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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