Operator Type:
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Function [other Function type actions]
Item [operators of similar scope]
Mathematical [other Mathematical operators]
Baseline
ceil(number)
rounds the number value of number up to next whole integer.
If $MyNumber is 3.2 then:
$MyNumber = ceil($MyNumber);
sets $MyNumber to 4. Note unlike normal rounding the value is set upwards to the next integer (i.e. whole number).