(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
gmp_perfect_square — Perfect square check
num
The number being checked as a perfect square.
A GMP object, an int or a numeric string.
Returns true
if num
is a perfect square,
false
otherwise.
Example #1 gmp_perfect_square() example
<?php// 3 * 3, perfect squarevar_dump(gmp_perfect_square("9"));// not a perfect squarevar_dump(gmp_perfect_square("7"));// 1234567890 * 1234567890, perfect squarevar_dump(gmp_perfect_square("1524157875019052100"));?>
The above example will output:
bool(true) bool(false) bool(true)