gmp_perfect_square
(PHP 4 >= 4.0.4, PHP 5)
gmp_perfect_square -- Perfect square check
Description
bool
gmp_perfect_square ( resource a )
Returns TRUE if a is a perfect square, FALSE otherwise.
Example 1. gmp_perfect_square() example <?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 printout of the above program will be: bool(true) bool(false) bool(true) |
|
See also: gmp_sqrt(), gmp_sqrtrem().