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How to use the Concatenation Assignment (.=) Operator In PHP

Using str_pad() Method

Using the String Conversion

The .= operator in PHP is the concatenation assignment operator. It is used to concatenate the right operand to the left operand and assign the result to the left operand.

Example: The below method illustrates how to add a Character to a String in PHP with the help of the Concatenation Assignment (.=) Operator.

PHP




<?php
$oldstr = "w3wiki";
$oldstr .= "!!";
echo $oldstr;
?> 






                        









													
													
												

												
												

													
													
Output:

													
													
												

												
												

													
													
w3wiki!!

													
													
												

												
											

											
											

												
How to add a Character to String in PHP ?

												
												

													
													
Given two strings, the task is to add a Character to a String in PHP. The character can be added to a string in many ways in this article we will be using eight methods including the Concatenate Method, the String Interpolation Method, the str_pad() Method, Concatenation Assignment (.=) Operator, String Conversion, The sprintf Function or printf Function, The strcat Function, and Using Array Join.

													
													
												

												
												

													
													
For Example, Consider the below example where there are two strings:

													
													
												

												
												

													
													
Input
string1 = "Welcome to" , 
string2 = "w3wiki"

Output
Welcome to w3wiki

													
													
												

												
												

													
													


Table of Content


    

  • Using Concatenate Method
    • 

  • Using String Interpolation Method
    • 

  • Using str_pad() Method
    • 

  • Using the Concatenation Assignment (.=) Operator
    • 

  • Using the String Conversion
    • 

  • Using the sprintf Function or printf Function
    • 

  • Using the strcat Function
    • 

  • Using Array Join
    • 




													
													
												

												
											

										


										
										

											
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												Using str_pad() Method
											
											
										

										

											
											
												Using the String Conversion