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<title>Retrieve list of registered streams</title>
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<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 description" id="refsect1-function.stream-get-wrappers-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>stream_get_wrappers</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Retrieve list of registered streams available on the running system.
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.stream-get-wrappers-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an indexed array containing the name of all stream wrappers
available on the running system.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.stream-get-wrappers-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4024">
<p><strong>Example #1 <span class="function"><strong>stream_get_wrappers()</strong></span> example</strong></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 screen">
<div class="cdata"><pre>
Array
(
[0] => php
[1] => file
[2] => http
[3] => ftp
[4] => compress.bzip2
[5] => compress.zlib
)
</pre></div>
</div>
</div>
</p>
<p class="para">
<div class="example" id="example-4025">
<p><strong>Example #2 Checking for the existence of a stream wrapper</strong></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>
</div>
<div class="refsect1 seealso" id="refsect1-function.stream-get-wrappers-seealso">
<h3 class="title">See Also</h3>
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.stream-wrapper-register.html" class="function" rel="rdfs-seeAlso">stream_wrapper_register()</a> - Register a URL wrapper implemented as a PHP class</span></li>
</ul>
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