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ceil - Rounds fractions up
float ceil( float $x )
ceil() returns the smallest integral value that is not less than x.
x - The number to round. It can be a scalar or an array.
The smallest integral value not less than x. If x is an array, the return value will also be an array.
ceil(-3.8) == -3.0 and not -4.0
1.0 and above.