<!DOCTYPE html> <html lang="en"> <head> <title>PHP String Operators-aimtocode</title> </head> <body> <?php $x = "Welcome to :"; $y = " aimtocode!"; echo $x . $y; // Outputs: Hello World! echo "<br>"; $x .= $y; echo $x; // Outputs: Hello World! ?> </body> </html>