Using Concatenation Operator

Now we are talking about Concatenation.
Concatenation operator (.) [dot] is use to put two string value together.
To concatenate two string value together, use the concatenation operator.      

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<?php
$string1="Hello";
$string2="Welcome to Mint PHP !";
echo $string1. " " .$string2;
?>
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Output:
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Hello Welcome to Mint PHP !

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There is another method, without using the   .= operator  by this we can join different variable into another variable.
Example:
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   <?php
$string1="Hello,";
$string2="World!";
$string3=$string1 . $string2; 
$string4=$string1 . ' and welcome to Mint PHP Blog ' .$string2;

echo $string3.' ' .$string4;

?>

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Output:
_______

Hello,World! Hello, and welcome to Mint PHP Blog World!
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