In all programming languages, operators are used to manipulate or perform operations on variables and values. There are many operators used in PHP.
- Assignment Operators
- Arithmetic Operators
- Comparison Operators
- String Operators
- Combination Arithmetic & Assignment Operators
Assignment Operators
Assignment operators are used to set a variable equal to a value or set a variable to another variable’s value. Such an assignment of value is done with the “=”, or equal character. Example:
$myvar = 4; |
Arithmetic Operators
Addition (+)
Subtraction (-)
Multiplication (*)
Division (/)
Modulus (%)
Comparison Operators
Equal To (==)
Not Equal To (!=)
Less Than (<)
Greater Than (>)
Less Than or Equal To (<=)
Greater Than or Equal To (>=)
Operators
! a
NOT
True if a is not true.
a && b
AND
True if both a and b are true.
a || b
OR
True if either a or b is true.
a and b
AND
True if both a and b are true.
a xor b
XOR
True if a or b is true, but not both.
a or b
OR
True if either a or b is true.
Conditional Operators in PHP
==
Is equal to
===
Is identical to (is equal and is the same data type)
!=
Is not equal to
!==
Is not identical to
<
Is less than
<=
Is less than or equal to
>
Is greater than
>=
Is greater than or equal to
