JuniorTheoryCommon

What does the program print (lines separated by spaces)?

PHP

<?php

$ok = true && false;
$ok2 = true and false;
var_dump($ok, $ok2);

bool(false) bool(true)

Expecting and to work like &&: both compute the same value, but and binds weaker than =, so $ok2 = true and false stores true and drops the result.
Expecting = to run before &&: && binds tighter than =, so $ok = true && false stores the result of the whole expression, false.

JuniorTheoryCommon

PHP

<?php

$ok = true && false;
$ok2 = true and false;
var_dump($ok, $ok2);

bool(false) bool(true)

Expecting and to work like &&: both compute the same value, but and binds weaker than =, so $ok2 = true and false stores true and drops the result.
Expecting = to run before &&: && binds tighter than =, so $ok = true && false stores the result of the whole expression, false.