Welcome to PHP

An Intranet Design Magazine Tutorial

By Aaron Weiss

PHP Logical Operators

Operator	Name	Description	Example	Yield
and	And	True if both lefthand and righthand expressions are true.	(5>2) and (3>2) (2>5) and (3>2)	true false
or	Or	True if either lefthand or righthand expression is true.	(5>2) or (2>7) ("h">"a") or (1<3)	true true
xor	Exclusive Or	True if either lefthand or righthand expression is true unless both are true.	("ar">"ac") xor (9>2) (3==3) xor ("f"=="f")	true false
!	Not	Negates the expression it precedes, true if the expression is not true.	!("small"<"smell")	false

All of these operators can certainly be exhausting!

Just as eye fatigue sets in, a jolt! We're about to string together everything we've learned so far, with the magic of control statements. Things get much more exciting from here on in, for those of us excited by this sort of thing (and who admit it).

Control Statements >

< PHP Comparison Operators