More Arithmetical and Logical Operators

PHP has a myriad of arithmetical and logical operators. Here is the complete list of these operators (in their Order of Precedence. PS: Those listed on the same row are on the same hierrachy in the precedence.):

{Less Precedent}
,
or
xor
and
print
= += -= *= /= .= %= &= |= ^= ~= <<= >>= 
? :
||
&&
|
^
&
== != === !==
< <= > >=
<< >>
+ - .
* / %
! ~ ++ -- (int) (double) (string) (array) (object) @
[
new
{Most Precedent}

For a beginner some of these are... hard to comprehend. So for now we will make do with a few of these by looking at a less-detailed version of the above list of operators