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17 lines
852 B
XML
17 lines
852 B
XML
<!-- $Revision: 1.2 $ -->
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<note>
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<para>
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As with all the variant arithmetic functions, the parameters for this function
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can be either a PHP native type (integer, string, floating point, boolean or
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&null;), or an instance of a COM, VARIANT or DOTNET class. PHP native types
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will be converted to variants using the same rules as found in the constructor
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for the <xref linkend="class.variant"/> class. COM and DOTNET objects
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will have the value of their default property taken and used as the variant value.
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</para>
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<para>
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The variant arithmetic functions are wrappers around the similarly named
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functions in the COM library; for more information on these functions, consult
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the MSDN library. The PHP functions are named slightly differently; for example
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variant_add() in PHP corresponds to VarAdd() in the MSDN documentation.
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</para>
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</note>
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