PHP Reference

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_sqrtrm().