gmp_clrbit
gmp_clrbit
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
gmp_clrbit — Clear bit
Description
void gmp_clrbit ( GMP $a , int $index )
Clears (sets to 0) bit index
in a
. The index starts at 0.
Parameters
Examples
Example #1 gmp_clrbit() example
<?php $a = gmp_init("0xff"); gmp_clrbit($a, 0); // index starts at 0, least significant bit echo gmp_strval($a) . "\n"; ?>
The above example will output:
254
Notes
Note:
Unlike most of the other GMP functions, gmp_clrbit() must be called with a GMP resource that already exists (using gmp_init() for example). One will not be automatically created.
See Also
- gmp_setbit() - Set bit
- gmp_testbit() - Tests if a bit is set
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https://secure.php.net/manual/en/function.gmp-clrbit.php