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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>Mcrypt configuration options</strong></caption>
<thead>
<tr>
<th>Name</th>
<th>Default</th>
<th>Changeable</th>
<th>Changelog</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td><a href="mcrypt.configuration.html#ini.mcrypt.algorithms-dir" class="link">mcrypt.algorithms_dir</a></td>
<td><strong><code>NULL</code></strong></td>
<td>PHP_INI_ALL</td>
<td class="empty"> </td>
</tr>
<tr>
<td><a href="mcrypt.configuration.html#ini.mcrypt.modes-dir" class="link">mcrypt.modes_dir</a></td>
<td><strong><code>NULL</code></strong></td>
<td>PHP_INI_ALL</td>
<td class="empty"> </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.mcrypt.algorithms-dir">
<span class="term">
<em><code class="parameter">mcrypt.algorithms_dir</code></em>
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>
</span>
<dd>
<p class="para">
The directory that contains the algorithms. Defaults to the directories
compiled within libmcrypt, which is typically
<em class="emphasis">/usr/local/lib/libmcrypt</em>. See
<span class="function"><a href="function.mcrypt-list-algorithms.html" class="function">mcrypt_list_algorithms()</a></span> for additional details.
</p>
</dd>
</dt>
<dt id="ini.mcrypt.modes-dir">
<span class="term">
<em><code class="parameter">mcrypt.modes_dir</code></em>
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>
</span>
<dd>
<p class="para">
The directory that contains the modes. Defaults to the directories
compiled within libmcrypt, which is typically
<em class="emphasis">/usr/local/lib/libmcrypt</em>. See
<span class="function"><a href="function.mcrypt-list-modes.html" class="function">mcrypt_list_modes()</a></span> for additional details.
</p>
</dd>
</dt>
</dl>
</p>
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