Show Output
<!DOCTYPE html> <html lang="en"> <head> <title>PHP Function with Optional Parameters</title> </head> <body> <?php // Defining function function customFont($font, $size=1.5){ echo "<p style=\"font-family: $font; font-size: {$size}em;\">Hello, world!</p>"; } // Calling function customFont("Arial", 2); customFont("Times", 3); customFont("Courier"); ?> </body> </html>
