Brackets and assignment inside of php's IF -

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question:

code 1 , code 2 has got 1 difference - brackets.

i not why 1st causes error 2nd not.

code 1:

if (     $response = $myobject->response($request)     && $response2 = $myobject->response($response) // php notice: undefined variable: response  )

code 2:

if (     ($response = $myobject->response($request))     && $response2 = $myobject->response($response) // ok )

&& operator has higher precedence = operator.

the brackets change order of evaluation desire, expressions in brackets evaluated first(as in math).


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