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(PHP 4 >= 4.0.4, PHP 5)

gmp_setbit -- Set bit

Description

void gmp_setbit ( resource &a, int index [, bool set_clear] )

Sets bit index in a . set_clear defines if the bit is set to 0 or 1. By default the bit is set to 1. Index starts at 0.

Example 1. gmp_setbit() example

<?php
$a = gmp_init("0xfd");
gmp_setbit($a, 1); // index starts at 0
echo gmp_strval($a) . "\n";
?>

The printout of the above program will be:

255

Related Function(s)

gmp_init()

gmp_clrbit()