PHP – How to Concatenate Strings?

In this PHP tutorial, you shall learn how to concatenate two or more strings using String Concatenation Operator, with example programs.

PHP – Concatenate Strings

To concatenate strings in PHP, use string concatenation operator . . String Concatenation operator takes two strings as operands and returns a string that is concatenation of the two operand strings.

The syntax to use string concatenation operator is

$result = $string_1 . $string_2

You can also concatenate more than two strings, just like an arithmetic expression where you add more than two integers. The syntax to concatenate more than two strings is

$result = $string_1 . $string_2 . $string_3 . $string_4

Examples

1. Concatenate two strings

In this example, we will take two strings in two variables, and concatenate them using concatenation operator. We shall store the returned string in a variable and echo it.

PHP Program

<?php
$string_1 = "Hello ";
$string_2 = "World!";

$result = $string_1 . $string_2;

echo $result;
?>

Output

2. Concatenate more than two strings

In this example, we will take three strings, and concatenate them using concatenation operator.

PHP Program

<?php
$string_1 = "Hello ";
$string_2 = "World!";
$string_3 = " Welcome to PHP Tutorial by TutorialKart.";

$result = $string_1 . $string_2 . $string_3;

echo $result;
?>

Output

Conclusion

In this PHP Tutorial, we learned how to concatenate two or more strings using string concatenation operator, with the help of example programs.