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add hash_copy() description
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@258099 c90b9560-bf6c-de11-be94-00142212c4b1
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reference/hash/functions/hash-copy.xml
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92
reference/hash/functions/hash-copy.xml
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.1 $ -->
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<refentry xml:id="function.hash-copy" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>hash_copy</refname>
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<refpurpose>Copy hashing context</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>resource</type><methodname>hash_copy</methodname>
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<methodparam><type>resource</type><parameter>context</parameter></methodparam>
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</methodsynopsis>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>context</parameter></term>
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<listitem>
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<para>
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Hashing context returned by <function>hash_init</function>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns a copy of Hashing Context resource.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>hash_copy</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$context = hash_init("md5");
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hash_update($context, "data");
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/* copy context to be able to continue using it */
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$copy_context = hash_copy($context);
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echo hash_final($context), "\n";
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hash_update($copy_context, "data");
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echo hash_final($copy_context), "\n";
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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8d777f385d3dfec8815d20f7496026dc
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511ae0b1c13f95e5f08f1a0dd3da3d93
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]]>
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</screen>
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</example>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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