Question

How to check odd or even using bitwise operator in PHP

Answer 1

$n = 10;
if ($n & 1 == 1)
    echo "Odd";
else
    echo "Even";
    
/*
run:
Even
*/ 

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Answer 2

$n = 13;
if ($n & 1 == 1)
    echo "Odd";
else
    echo "Even";
    
/*
run:
Odd
*/  

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