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php-manual-en-4.3.0-2mdk.noarch.rpm

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>Arithmetic Operators</H1
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>&#13;    Remember basic arithmetic from school? These work just
    like those.
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>Table 11-2. Arithmetic Operators</B
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>Example</TH
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>$a + $b</TD
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>Addition</TD
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>Sum of $a and $b.</TD
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>$a - $b</TD
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>Subtraction</TD
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>Difference of $a and $b.</TD
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>$a * $b</TD
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>Multiplication</TD
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>Product of $a and $b.</TD
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>$a / $b</TD
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>Division</TD
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>Quotient of $a and $b.</TD
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>$a % $b</TD
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>Modulus</TD
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>Remainder of $a divided by $b.</TD
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>&#13;    The division operator ("/") returns a float value anytime,
    even if the two operands are integers (or strings that get
    converted to integers).
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