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Asked: 2026-05-13T23:44:12+00:00

I am confused with & and && . I have two PHP books. One

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I am confused with & and &&. I have two PHP books. One says that they are same, but the another says they are different. I thought they are same as well.

Aren’t they same?

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1 Answer

  1. Editorial Team

    & is bitwise AND. See Bitwise Operators. Assuming you do 14 & 7:

        14 = 1110
     7 = 0111
    ---------
14 & 7 = 0110 = 6

    && is logical AND. See Logical Operators. Consider this truth table:

     $a     $b     $a && $b
false  false    false
false  true     false
true   false    false
true   true     true
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