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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 322701 $ -->
<refentry xml:id="function.hash-algos" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>hash_algos</refname>
<refpurpose>Return a list of registered hashing algorithms</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>hash_algos</methodname>
<void/>
</methodsynopsis>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns a numerically indexed array containing the list of supported
hashing algorithms.
</para>
</refsect1>
<refsect1 role="changelog"><!-- {{{ -->
&reftitle.changelog;
<para>
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
<row>
<entry>5.4.0</entry>
<entry>Support for joaat, fnv132 and fnv164 was added. Support for Salsa10 and Salsa20 was removed.</entry>
</row>
<row>
<entry>5.3.0</entry>
<entry>Support for md2, ripemd256, ripemd320, salsa10, salsa20, snefru256 and sha224 was added</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</refsect1><!-- }}} -->
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>hash_algos</function> example</title>
<para>
As of PHP 5.3.0, <function>hash_algos</function> will return the
following list of algorithm names.
</para>
<programlisting role="php">
<![CDATA[
<?php
print_r(hash_algos());
?>
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Array
(
[0] => md2
[1] => md4
[2] => md5
[3] => sha1
[4] => sha224
[5] => sha256
[6] => sha384
[7] => sha512
[8] => ripemd128
[9] => ripemd160
[10] => ripemd256
[11] => ripemd320
[12] => whirlpool
[13] => tiger128,3
[14] => tiger160,3
[15] => tiger192,3
[16] => tiger128,4
[17] => tiger160,4
[18] => tiger192,4
[19] => snefru
[20] => snefru256
[21] => gost
[22] => adler32
[23] => crc32
[24] => crc32b
[25] => salsa10
[26] => salsa20
[27] => haval128,3
[28] => haval160,3
[29] => haval192,3
[30] => haval224,3
[31] => haval256,3
[32] => haval128,4
[33] => haval160,4
[34] => haval192,4
[35] => haval224,4
[36] => haval256,4
[37] => haval128,5
[38] => haval160,5
[39] => haval192,5
[40] => haval224,5
[41] => haval256,5
)
]]>
</screen>
</example>
</para>
</refsect1>
</refentry>
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