PHP - gmp_​setbit() Function

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Definition and Usage

The gmp_​setbit() function sets the bit index for the given GMP number.

Description

The gmp_​setbit() sets the bit for the given index in the GMP number.

Syntax

gmp_setbit ( GMP $gmpnumber , int $index [, bool $bit_on = TRUE ] ) : void

Parameters

Return Values

PHP gmp_setbit() function does not return any value.

PHP Version

This function will work from PHP Version greater than 5.0.0.

Example 1

Working of gmp_setbit() −

<?php
   $a = gmp_init("5");
   echo "The number 5 binary value is :" .gmp_strval($a, 2);
   echo "<br/><br/>";
   gmp_setbit($a, 1);
   echo "After setting bit at index 1 : ".gmp_strval($a, 2);
?>

This will produce following result −

The number 5 binary value is :101
After setting bit at index 1 : 111

Example 2

Working of gmp_setbit() −

<?php
   $a = gmp_init(150);
   echo "The number is :" .gmp_strval($a);
   echo "<br/><br/>";
   gmp_setbit($a, 0);
   echo "After setting bit at index 1 : ".gmp_strval($a);
?>

This will produce following result −

The number is :150
After setting bit at index 1 : 151