PHP | ceil( ) Function

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.

Syntax:

float ceil(value)

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.

Examples:

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:
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  <?php    echo (ceil(0.70));    ?>

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  Output:

  1

• When a negative number with decimal places is passed as a parameter:
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  <?php    echo (ceil(-4.1));    ?>

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  Output:

  -4

• When a number with no decimal places is passed as a parameter:
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  <?php    echo (ceil(6));    ?>

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  Output:

  6

Reference:
http://php.net/manual/en/function.ceil.php

Shubrodeep Banerjee

I am a technology enthusiast who has a keen interest in programming I am pursuing Engineering in Computer Science from GEU, Dehradun I like to unwind by watching movies and English sitcomsI have a keen interest in music