php-doc-en/reference/mhash/functions/mhash.xml
Daniel Egeberg 96c9d88bad Converted to utf-8
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
2010-03-28 22:10:10 +00:00

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XML

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.mhash" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>mhash</refname>
<refpurpose>Compute hash</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>mhash</methodname>
<methodparam><type>int</type><parameter>hash</parameter></methodparam>
<methodparam><type>string</type><parameter>data</parameter></methodparam>
<methodparam choice="opt"><type>string</type><parameter>key</parameter></methodparam>
</methodsynopsis>
<para>
<function>mhash</function> applies a hash function specified by
<parameter>hash</parameter> to the <parameter>data</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>hash</parameter></term>
<listitem>
<para>
The hash id. One of the <literal>MHASH_XXX</literal> constants.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>data</parameter></term>
<listitem>
<para>
The user input, as a string.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>key</parameter></term>
<listitem>
<para>
If specified, the function will return the resulting HMAC instead.
HMAC is keyed hashing for message authentication, or simply a message
digest that depends on the specified key. Not all algorithms
supported in mhash can be used in HMAC mode.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the resulting hash (also called digest) or HMAC as a string, or
&false; on errors.
</para>
</refsect1>
</refentry>
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