Guide to getting out of php and && in php

I originally thought that and and in PHP are the same, but the writing is for readability and aesthetics. In fact, I was wrong. There is a pit hidden in it!
Look at the following code:

$bA = true;
$bB = false;
$b1 = $bA and $bB;
$b2 = $bA && $bB;
var_dump($b1); // $b1 = true
var_dump($b2); // $b2 = false
$bA = false;
$bB = true;
$b3 = $bA or $bB;
$b4 = $bA || $bB;
var_dump($b3); // $b3 = false
var_dump($b4); // $b4 = true

Strange, and the results of and/&& and or/|| are different. What is the problem?
Let's look at another piece of code!

$bA = true;
$bB = false;
var_dump($bA and $bB); // false
var_dump($bA && $bB); // false
$bA = false;
$bB = true;
var_dump($bA or $bB); // true
var_dump($bA || $bB); // true

Even more strange, why is it right at this time. So the question may appear on =, after a while, Google and documentation, I finally found the answer!

Operator priority

Through this table, we can see that the priority of the two sets of operators and/&& and or/|| is actually different. The priority of and or and or is lower than =, so the above code is easy to understand, which is to do assignment first and then do a logical operation of and or or, and the result of this operation has not survived. So the result that comes out finally makes us incredible.