We have often used the ceiling function in mathematical problems to round up a decimal number to next greater integral value. PHP provides us with a built-in function ceil() to perform such operation. The ceil() function is a built-in function in PHP and is used to round a number to the nearest greater integer.
Parameters: The ceil() function accepts a single parameter value which reperesents the number which you want to round up to the nearest greater integer.
Return Value: The return type of the ceil() function is float as shown in the syntax. It returns the number which represents the value rounded up to the next highest integer.
Input : ceil(0.70) Output : 1 Input : ceil(-4.1) Output : -4 Input : ceil(6) Output : 6
Below programs illustrate the ceil() function in PHP:
- When a positive number with decimal places is passed as a parameter:
- When a negative number with decimal places is passed as a parameter:
- When a number with no decimal places is passed as a parameter:
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