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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.hash-hmac-algos" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>hash_hmac_algos</refname>
<refpurpose>Return a list of registered hashing algorithms suitable for hash_hmac</refpurpose>
</refnamediv>
<refsect1 role="description"><!-- {{{ -->
&reftitle.description;
<methodsynopsis>
<type>array</type><methodname>hash_hmac_algos</methodname>
<void />
</methodsynopsis>
</refsect1><!-- }}} -->
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues"><!-- {{{ -->
&reftitle.returnvalues;
<para>
Returns a numerically indexed array containing the list of supported hashing
algorithms suitable for <function>hash_hmac</function>.
</para>
</refsect1><!-- }}} -->
<refsect1 role="examples"><!-- {{{ -->
&reftitle.examples;
<example xml:id="hash-hmac-algos.example.basic"><!-- {{{ -->
<title><function>hash_hmac_algos</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
print_r(hash_hmac_algos());
]]>
</programlisting>
&example.outputs.similar;
<screen>
<![CDATA[
Array
(
[0] => md2
[1] => md4
[2] => md5
[3] => sha1
[4] => sha224
[5] => sha256
[6] => sha384
[7] => sha512/224
[8] => sha512/256
[9] => sha512
[10] => sha3-224
[11] => sha3-256
[12] => sha3-384
[13] => sha3-512
[14] => ripemd128
[15] => ripemd160
[16] => ripemd256
[17] => ripemd320
[18] => whirlpool
[19] => tiger128,3
[20] => tiger160,3
[21] => tiger192,3
[22] => tiger128,4
[23] => tiger160,4
[24] => tiger192,4
[25] => snefru
[26] => snefru256
[27] => gost
[28] => gost-crypto
[29] => haval128,3
[30] => haval160,3
[31] => haval192,3
[32] => haval224,3
[33] => haval256,3
[34] => haval128,4
[35] => haval160,4
[36] => haval192,4
[37] => haval224,4
[38] => haval256,4
[39] => haval128,5
[40] => haval160,5
[41] => haval192,5
[42] => haval224,5
[43] => haval256,5
)
]]>
</screen>
</example><!-- }}} -->
</refsect1><!-- }}} -->
<refsect1 role="notes"><!-- {{{ -->
&reftitle.notes;
<note>
<para>
Before PHP 7.2.0 the only means to get a list of supported hash algorithms
has been to call <function>hash_algos</function> which also returns hash
algorithms that are not suitable for <function>hash_hmac</function>.
</para>
</note>
</refsect1><!-- }}} -->
<refsect1 role="seealso"><!-- {{{ -->
&reftitle.seealso;
<simplelist>
<member><function>hash_hmac</function></member>
<member><function>hash_algos</function></member>
</simplelist>
</refsect1><!-- }}} -->
</refentry>
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sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-local-catalogs:nil
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-->
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