Question

How to remove the lowest order bit in PHP

Answer 1

$n = 2664;

echo str_replace(" ", "0", sprintf("%16s", decbin($n))) . "\n";

$n &= ($n - 1);

echo str_replace(" ", "0", sprintf("%16s", decbin($n))) . "\n";

    
    
/*
run:
   
0000101001101000
0000101001100000
    
*/

 

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