Close Tag
PHP commands are placed between the PHP tags, <?php and ?>. The second tag is called the closing tag.
Closing tag allow to finish a PHP tag, and switch back to non-interpreted code. The text following the closing tag is then display raw, until the next PHP tag.
When a file online contains PHP code, the closing tag is not necessary. Its absence even prevents the accidental adding of white space, which create output errors.
<?php
// here, PHP code
// the closing tag
?>Here, raw text, always displayed
<?php
// more PHP code
// No final closing tag