gmp_testbit

Tests if a bit is set

bool **gmp_testbit**  $num int $index

Tests if the specified bit is set.

num``indexThe bit to test

Returns true if the bit is set in , otherwise false. num

An level error is issued when is less than zero, and false is returned. E_WARNING``index

Voorbeeld: example

<?php
$n = gmp_init("1000000");
var_dump(gmp_testbit($n, 1));
gmp_setbit($n, 1);
var_dump(gmp_testbit($n, 1));
?>

bool(false)
bool(true)

gmp_setbit``gmp_clrbit

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