floor

Round fractions down (PHP 3, PHP 4 )
float floor ( float value )

Returns the next lowest integer value by rounding down value if necessary. The return value of floor() is still of type float because the value range of float is usually bigger than that of integer.

Example 491. floor() example

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<?php
echo floor(4.3);   // 4
echo floor(9.999); // 9
?>

See also ceil() and round().

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