gmp_orgmp_perfect_square
(PHP 4 >= 4.0.4, PHP 5)
gmp_perfect_square — Perfect square check
Описание
bool gmp_perfect_square
( resource $a
)
Check if a number is a perfect square.
Параметри
- a
-
The number being checked as a perfect square.
Може да бъде или ресурс на GMP число, или числов низ, който може да бъде преобразуван в число.
Връщани стойности
Returns TRUE if a is a perfect square, FALSE otherwise.
Примери
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"));
?>
Примерът по-горе ще изведе:
bool(true) bool(false) bool(true)
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