Sometimes we need to add “two variables” or “one variable and one string”.
In this PHP tutorial we will see how to add two variables / string.
Example one:
Simply we can put all variables under double quotation mark.
<?php
$str1 = 'welcome to ';
$str2 = '9zap.com';
echo "$str1 $str2";
?>
Example Two:
What happens if we put all variables under single quotation mark
<?php
$str1 = 'welcome to ';
$str2 = '9zap.com';
echo '$str1 $str2';
?>
Example Three:
You can use the PHP concatenation operator which is a dot mark (.)
<?php
$str1 = 'welcome to ';
$str2 = '9zap.com';
echo $str1 . $str2;
?>
Example Four
Add some string / text and two variables.
<?php
$str1 = 'welcome to ';
$str2 = '9zap.com';
echo 'Hello world '.$str1 . $str2;
?>
Example Five
Another example to add two string and two variables and also insert a empty space.
<?php
$name = 'Ravi';
$age = 28;
echo 'Hello, may name is '.$name.' '.'and I am '.$age.' years old';
?>