In PHP, how do I merge strings with built-in functions?

In PHP, you can merge strings using several built-in functions and techniques. Here’s a simple example:


        <?php
        // Using concatenation
        $string1 = "Hello, ";
        $string2 = "World!";
        $mergedString = $string1 . $string2;
        echo $mergedString; // Output: Hello, World!
        
        // Using implode
        $array = ["Goodbye, ", "World!"];
        $mergedString2 = implode("", $array);
        echo $mergedString2; // Output: Goodbye, World!
        ?>