Run ❯
Get your
own PHP
server
×
Change Orientation
Change Theme, Dark/Light
Go to Spaces
<!DOCTYPE html> <html> <body> <?php $str = "Hello world!"; echo bin2hex($str) . "<br>"; echo pack("H*",bin2hex($str)) . "<br>"; ?> </body> </html>
48656c6c6f20776f726c6421
Hello world!
