Operator     Name	 Example	          Result

  and	      And	$x and $y	True if both $x and $y are true	
  or          Or	$x or $y	True if either $x or $y is true	
  xor	      Xor	$x xor $y	True if either $x or $y is true, but not both	
  &&	      And	$x && $y	True if both $x and $y are true	
  ||	      Or	$x || $y	True if either $x or $y is true	
  !	      Not	!$x	        True if $x is not true

$x = 10;
$y = -10;

// Operator - and
if ( $x > 5 and $y > -15 ) {
	echo "True: $x > 5"."\n";
	echo "True: $y > -15"."\n\n";
}

// Operator - or
if ( $x > 100 or $x > -1 ) {
	echo "False: $x > 100"."\n";
	echo "True: $x > -1"."\n\n";
}

// Operator - xor
if ($x == 10 xor $y == -10 ) {
	// both conditional statements are true! 
} else {
	echo "Both is true \n\n";
}

// Operator - && (same as - and)
if ($y <= 0 && $y == -10 and $y != 10) {
	echo "True: $y <= 0\n";
	echo "True: $y = -10\n";
	echo "True: $y != 10\n\n";
}

// Operator - || (same as - or)
if ($x == 1 or $x == 10){
	echo "True: $x = 10\n";
	echo "False: $x = 1\n\n";
}

$x = 0;
// Operator - !
if (!$x) {
	echo "$x is false";
}