< Server-Side Scripting < Introduction
index.php
<?php
// Displays 'Hello world!'
//
// References:
// https://repl.it/languages/php7
// https://www.php.net/manual/en/tutorial.firstpage.php
echo 'Hello world!';
?>
Try It
Copy and paste the code above into the following free online development environment or use your own PHP compiler / interpreter / IDE.
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