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<title>Gets cURL version information</title>
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<div class="refnamediv">
<h1 class="refname">curl_version</h1>
<p class="verinfo">(PHP 4 >= 4.0.2, PHP 5)</p><p class="refpurpose"><span class="refname">curl_version</span> — <span class="dc-title">Gets cURL version information</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.curl-version-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>curl_version</strong></span>
([ <span class="methodparam"><span class="type">int</span> <code class="parameter">$age</code><span class="initializer"> = CURLVERSION_NOW</span></span>
] )</div>
<p class="para rdfs-comment">
Returns information about the cURL version.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.curl-version-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">age</code></em></span>
<dd>
<p class="para">
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.curl-version-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an associative array with the following elements:
<table class="doctable informaltable">
<thead>
<tr>
<th>Indice</th>
<th>Value description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>version_number</td>
<td>cURL 24 bit version number</td>
</tr>
<tr>
<td>version</td>
<td>cURL version number, as a string</td>
</tr>
<tr>
<td>ssl_version_number</td>
<td>OpenSSL 24 bit version number</td>
</tr>
<tr>
<td>ssl_version</td>
<td>OpenSSL version number, as a string</td>
</tr>
<tr>
<td>libz_version</td>
<td>zlib version number, as a string</td>
</tr>
<tr>
<td>host</td>
<td>Information about the host where cURL was built</td>
</tr>
<tr>
<td>age</td>
<td class="empty"> </td>
</tr>
<tr>
<td>features</td>
<td>A bitmask of the <em>CURL_VERSION_XXX</em> constants</td>
</tr>
<tr>
<td>protocols</td>
<td>An array of protocols names supported by cURL</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.curl-version-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4232">
<p><strong>Example #1 <span class="function"><strong>curl_version()</strong></span> example</strong></p>
<div class="example-contents"><p>
This example will check which features that's available
in cURL build by using the <em>'features'</em> bitmask returned
by <span class="function"><strong>curl_version()</strong></span>.
</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">// Get curl version array<br /></span><span style="color: #0000BB">$version </span><span style="color: #007700">= </span><span style="color: #0000BB">curl_version</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// These are the bitfields that can be used <br />// to check for features in the curl build<br /></span><span style="color: #0000BB">$bitfields </span><span style="color: #007700">= Array(<br /> </span><span style="color: #DD0000">'CURL_VERSION_IPV6'</span><span style="color: #007700">, <br /> </span><span style="color: #DD0000">'CURL_VERSION_KERBEROS4'</span><span style="color: #007700">, <br /> </span><span style="color: #DD0000">'CURL_VERSION_SSL'</span><span style="color: #007700">, <br /> </span><span style="color: #DD0000">'CURL_VERSION_LIBZ'<br /> </span><span style="color: #007700">);<br /><br /><br />foreach(</span><span style="color: #0000BB">$bitfields </span><span style="color: #007700">as </span><span style="color: #0000BB">$feature</span><span style="color: #007700">)<br />{<br /> echo </span><span style="color: #0000BB">$feature </span><span style="color: #007700">. (</span><span style="color: #0000BB">$version</span><span style="color: #007700">[</span><span style="color: #DD0000">'features'</span><span style="color: #007700">] & </span><span style="color: #0000BB">constant</span><span style="color: #007700">(</span><span style="color: #0000BB">$feature</span><span style="color: #007700">) ? </span><span style="color: #DD0000">' matches' </span><span style="color: #007700">: </span><span style="color: #DD0000">' does not match'</span><span style="color: #007700">);<br /> echo </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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