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<title>Gets an array of all supported ciphers</title>
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<div class="refnamediv">
<h1 class="refname">mcrypt_list_algorithms</h1>
<p class="verinfo">(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)</p><p class="refpurpose"><span class="refname">mcrypt_list_algorithms</span> — <span class="dc-title">Gets an array of all supported ciphers</span></p>
</div>
<div id="function.mcrypt-list-algorithms-refsynopsisdiv">
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function has been
<em class="emphasis">DEPRECATED</em> as of PHP 7.1.0. Relying on this function
is highly discouraged.</p></div>
</div>
<div class="refsect1 description" id="refsect1-function.mcrypt-list-algorithms-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>mcrypt_list_algorithms</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$lib_dir</code><span class="initializer"> = ini_get("mcrypt.algorithms_dir")</span></span>
] )</div>
<p class="para rdfs-comment">
Gets the list of all supported algorithms in the
<code class="parameter">lib_dir</code> parameter.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mcrypt-list-algorithms-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">lib_dir</code></dt>
<dd>
<p class="para">
Specifies the directory where all algorithms are located. If not
specified, the value of the <em>mcrypt.algorithms_dir</em>
<var class="filename">php.ini</var> directive is used.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mcrypt-list-algorithms-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an array with all the supported algorithms.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.mcrypt-list-algorithms-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-945">
<p><strong>Example #1 <span class="function"><strong>mcrypt_list_algorithms()</strong></span> Example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$algorithms </span><span style="color: #007700">= </span><span style="color: #0000BB">mcrypt_list_algorithms</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$algorithms</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] => cast-128
[1] => gost
[2] => rijndael-128
[3] => twofish
[4] => arcfour
[5] => cast-256
[6] => loki97
[7] => rijndael-192
[8] => saferplus
[9] => wake
[10] => blowfish-compat
[11] => des
[12] => rijndael-256
[13] => serpent
[14] => xtea
[15] => blowfish
[16] => enigma
[17] => rc2
[18] => tripledes
)
</pre></div>
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