What do the "=&" and "&=" operators in PHP mean?
operators, php
Solution
`$a &= $b` is short for `$a = $a & $b` which is the bitwise-and operator.
`$a =& $b` assigns $a as a reference to $b.
Problem
What do "=&" / "&=" operators in PHP mean? Where can I read information about them? Searching Google doesn't help.