Operators in PHP

 Operators in PHP

By now, you must have started writing those scripts and started working on PHP. Now, it’s time for you to learn about the operators available in PHP. An operator is something in which one or more values are fed and it gives another value as a result.

In general there are three types of operators:

• Unary – it operates on only one value.
   
• Binary – it operates on two or more than two values.
   
• Ternary – it is used to select between two expressions depending on the third one.

There are many types of operators in PHP; some of them are useful but some are not. In this tutorial we will be studying about the most useful operators in PHP, which are:

• Arithmetic operators
   
• Assignment operators
   
• Comparison operators
   
• Logical operators

Arithmetic Operators

 

 

 

 

 

 

 

 

Assignment Operators Equal to (=) $a=$b; Is same as $a=$b; Plus equal to (+=) $a+=$b; Is same as $a=$a+$b; Minus equal to (-=) $a-=$b; Is same as $a=$a-$b; Multiply equal to (*=) $a*=$b; Is same as $a=$a*$b; Divide equal to (/=) $a/=$b; Is same as $a=$a/$b; Modulus equal to (%=) $a%=$b; Is same as $a=$a%$b; Comparison Operators Equal to (==) 3==5; Result: False Not equal to (!=) 3!=5; Result: True Greater than (>) 3>5; Result: False Less than (<) 3<5; Result: True Greater than or equal to (>=) 3>=5; Result: False Less than or equal to (<=) 3<=5; Result: True Logical Operators And (&&) $a=5; $b=2; ($a>4 && $b<3); Result: True Or (||) $a=7; $b=8; ($a<5 || $b<5); Result: False Not (!) $a=5; $b=5; !($a==$b); Result: False