String Operators in PHP : Tutorial

There are two String operators in PHP.

1. Concatenation Operator "." (dot)

2. Concatenation Assignment Operator ".=" (dot equals)

Concatenation Operator

Concatenation is the operation of joining two character strings/variables together.

In PHP we use . (dot) to join two strings or variables.

Below are some examples of string concatenation:

<?php

 echo "Hello "."there!";
 echo "My"." "."name"."is"." "."Mike";

?>

Output
	

Hello there!
My name is Mike

Below are some examples of string concatenation including variables:

<?php

 $message = "Hello there!";
 $name = "Mike";
 $age  = 19;

 echo $message;
 echo "My name is ".$name;
 echo "I am ".$age;

?>

Output
	

Hello there!
My name is Mike
I am 19

Concatenation Assignment Operator (.=)

Example :

<?php

 $message = "Hello";


 echo $message.=" there!"; //is same as $message = $message ." there!"

?>

Output
	

Hello there!