<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.hash-algos" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <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="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.
  </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>8.1.0</entry>
       <entry>
        Support for MurmurHash3 and xxHash algorithms has been added.
       </entry>
      </row>
      <row>
       <entry>7.4.0</entry>
       <entry>
        Support for crc32c has been added.
       </entry>
      </row>
      <row>
       <entry>7.1.0</entry>
       <entry>
        Support for sha512/224, sha512/256, sha3-224, sha3-256, sha3-384 and
        sha3-512 has been 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 8.1.0, <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] => sha512/224
    [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] => adler32
    [30] => crc32
    [31] => crc32b
    [32] => crc32c
    [33] => fnv132
    [34] => fnv1a32
    [35] => fnv164
    [36] => fnv1a64
    [37] => joaat
    [38] => murmur3a
    [39] => murmur3c
    [40] => murmur3f
    [41] => xxh32
    [42] => xxh64
    [43] => xxh3
    [44] => xxh128
    [45] => haval128,3
    [46] => haval160,3
    [47] => haval192,3
    [48] => haval224,3
    [49] => haval256,3
    [50] => haval128,4
    [51] => haval160,4
    [52] => haval192,4
    [53] => haval224,4
    [54] => haval256,4
    [55] => haval128,5
    [56] => haval160,5
    [57] => haval192,5
    [58] => haval224,5
    [59] => haval256,5
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso"><!-- {{{ -->
  &reftitle.seealso;
  <simplelist>
   <member><function>hash_hmac_algos</function></member>
  </simplelist>
 </refsect1><!-- }}} -->

</refentry>

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