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<title>Runtime Configuration</title>
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<h2 class="title">Runtime Configuration</h2>
<p class="simpara">
The behaviour of these functions is affected by settings in <var class="filename">php.ini</var>.
</p>
<p class="para">
<table class="doctable table">
<caption><strong>openssl Configure Options</strong></caption>
<thead>
<tr>
<th>Name</th>
<th>Default</th>
<th>Changeable</th>
<th>Changelog</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>openssl.cafile</td>
<td>""</td>
<td>PHP_INI_PERDIR</td>
<td>Available since PHP 5.6.0.</td>
</tr>
<tr>
<td>openssl.capath</td>
<td>""</td>
<td>PHP_INI_PERDIR</td>
<td>Available since PHP 5.6.0.</td>
</tr>
</tbody>
</table>
For further details and definitions of the
PHP_INI_* modes, see the <a href="configuration.changes.modes.html" class="xref">Where a configuration setting may be set</a>.
</p>
<p class="para">Here's a short explanation of
the configuration directives.</p>
<p class="para">
<dl>
<dt id="ini.openssl.cafile">
<code class="parameter">openssl.cafile</code>
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>
</dt>
<dd>
<p class="para">
Location of Certificate Authority file on local filesystem which should
be used with the verify_peer context option to authenticate the
identity of the remote peer.
</p>
</dd>
<dt id="ini.openssl.capath">
<code class="parameter">openssl.capath</code>
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>
</dt>
<dd>
<p class="para">
If cafile is not specified or if the certificate is not found there, the
directory pointed to by capath is searched for a suitable certificate.
capath must be a correctly hashed certificate directory.
</p>
</dd>
</dl>
</p>
<p class="para">
See also the <a href="context.ssl.html" class="link">SSL stream context</a> options.
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