ceil
(PHP 4, PHP 5)
ceil — Round fractions up
說明
float ceil
( float $value
)
Returns the next highest integer value by rounding up value if necessary.
參數
- value
-
The value to round
Return值
value rounded up to the next highest integer. The return value of ceil() is still of type float as the value range of float is usually bigger than that of integer.
範例
Example#1 ceil() example
<?php
echo ceil(4.3); // 5
echo ceil(9.999); // 10
echo ceil(-3.14); // -3
?>