PHP. Руководство по PHP. 2005

gmp_perfect_square

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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.

Пример 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)

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