PHP ceil()Function

PHP Math 参考手册PHP Math Reference Manual

Examples

Rounds up to the nearest integer:

<?php
echo(ceil(0.60) . "<br>");
echo(ceil(0.40) . "<br>");
echo(ceil(5) . "<br>");
echo(ceil(5.1) . "<br>");
echo(ceil(-5.1) . "<br>");
echo(ceil(-5.9));
?>

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Definition and Usage

The ceil() function rounds a number up to the nearest integer.

Tip:To round a number down to the nearest integer, seefloor()function.

Tip:To round a floating-point number, seeround()function.


Syntax

ceil(number);

Parameter Description
number Required. Specifies the value to round up.

Technical Details

Return Value: The nearest integer value rounded up.
Return Type: Float
PHP Version: 4+


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