gmp_perfect_square
PHP function
Edit on GitHub ✎
(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
Perfect square check
Description
gmp_perfect_square(GMP|int|string $num): bool
Check if a number is a perfect square.
Parameters
numThe number being checked as a perfect square.
Parameter
Return Values
Returns true if num is a perfect square, false otherwise.
Examples
gmp_perfect_square() example
php
<?php
// 3 * 3, perfect square
var_dump(gmp_perfect_square("9"));
// not a perfect square
var_dump(gmp_perfect_square("7"));
// 1234567890 * 1234567890, perfect square
var_dump(gmp_perfect_square("1524157875019052100"));
?>The above example will output:
output
bool(true)
bool(false)
bool(true)