(PHP 5 >= 5.3.0, PHP 7)
gmp_testbit — Tests if a bit is set
Returns TRUE
if the bit is set in resource $a
,
otherwise FALSE
.
An E_WARNING
level error is issued when
index
is less than zero, and FALSE
is returned.
Beispiel #1 gmp_testbit() example
<?php
$n = gmp_init("1000000");
var_dump(gmp_testbit($n, 1));
gmp_setbit($n, 1);
var_dump(gmp_testbit($n, 1));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
bool(false) bool(true)