PHP ceil() Function: Rounding Up to the Next Integer

The ceil() function in PHP returns the smallest integer value that is greater than or equal to a given floating‑point number.

Signature: float ceil(float $value) Parameter: $value – the number to be rounded up.

Return value: A float representing the next integer not less than $value; the type remains float because its range can exceed that of an integer.

Example:

<?php
echo ceil(4.3);
echo ceil(9.999);
echo ceil(-3.14);
?>

Expected output:

// 5
// 10
// -3