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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@249567 c90b9560-bf6c-de11-be94-00142212c4b1
118 lines
2.9 KiB
XML
118 lines
2.9 KiB
XML
<?xml version='1.0' encoding='iso-8859-1'?>
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<!-- $Revision: 1.5 $ -->
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<refentry xml:id="function.variant-add" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>variant_add</refname>
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<refpurpose>"Adds" two variant values together and returns the result</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>mixed</type><methodname>variant_add</methodname>
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<methodparam><type>mixed</type><parameter>left</parameter></methodparam>
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<methodparam><type>mixed</type><parameter>right</parameter></methodparam>
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</methodsynopsis>
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<para>
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Adds <parameter>left</parameter> to <parameter>right</parameter> using
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the following rules (taken from the MSDN library), which correspond to
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those of Visual Basic:
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<table>
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<title>Variant Addition Rules</title>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>If</entry>
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<entry>Then</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>Both expressions are of the string type</entry>
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<entry>Concatenation</entry>
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</row>
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<row>
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<entry>One expression is a string type and the other a
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character</entry>
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<entry>Addition</entry>
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</row>
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<row>
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<entry>One expression is numeric and the other is a string</entry>
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<entry>Addition</entry>
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</row>
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<row>
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<entry>Both expressions are numeric</entry>
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<entry>Addition</entry>
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</row>
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<row>
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<entry>Either expression is NULL</entry>
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<entry>NULL is returned</entry>
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</row>
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<row>
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<entry>Both expressions are empty</entry>
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<entry>Integer subtype is returned</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</para>
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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>left</parameter></term>
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<listitem>
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<para>
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The left operand.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>right</parameter></term>
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<listitem>
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<para>
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The right operand.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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&com.variant-arith;
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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 the result.
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>variant_sub</function></member>
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</simplelist>
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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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