Why would you want to combine strings in php?

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

Example – Concatenate Two Strings in PHP

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

Example – Concatenate more than Two Strings in PHP

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.

Concatenation and Combining Strings in PHP

How to combine two or more strings into one big string in PHP.

1496 views

By. Jacob

Edited: 2021-02-10 15:44

A common desire of a PHP developer is to combine several strings so they become one string. In programming, this is also known as string concatenation.

To concatenate a string in PHP, we will usually be using (.) periods. While generally easy, it gets harder when you want to use a mix of functions and strings. Using a function in a concatenated string allows us to use the function-output in-place, without first having to assign it to a variable.

Note. It is a good practice to avoid using extra variables that are not needed by the application.

The below is a very simple string, assembled using dots (periods):

$name = 'Quackmore Duck';
echo 'My name is ' . $name . ' and I am the father to Donald Duck.';

The same approach works when concatenating variables:

$name = 'Quackmore Duck';
$output = 'My name is ' . $name . ' and I am the father to Donald Duck.';
echo $output;

This is the preferred approach to concatenation.

echo 'This ', 'is a', ' concatenated string';

$name = 'Rasmus Lerdorf';
$output = 'My name is ', $name, ' and I am the inventor of PHP.';
echo $output;

PHP Parse error:  syntax error, unexpected ',' in /var/www/string_concatenation.php on line 3

echo 'Today\'s date is: ' . date('Y-m-d H:i:s') . ' and the sun is shining.';

echo 'This is the date: ' . date('Y') . date('m') . date('d');