gmp_clrbit
(PHP 4 >= 4.0.4)
gmp_clrbit -- Clear bit
Description
void gmp_clrbit ( resource &a, int index)
Clears (sets to 0) bit index in a. The index starts at 0.
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.
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 printout of the above program will be:
254
See also gmp_setbit().
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