How can PHP developers ensure cross-browser compatibility when embedding Flash games on a website?

To ensure cross-browser compatibility when embedding Flash games on a website, PHP developers can use JavaScript detection to check if the user's browser supports Flash. If the browser supports Flash, the game can be embedded using the appropriate HTML code. If not, an alternative message or content can be displayed to the user.

<?php
echo '<script type="text/javascript">';
echo 'if (swfobject.hasFlashPlayerVersion("9.0.0")) {';
echo 'echo '<object type="application/x-shockwave-flash" data="game.swf" width="400" height="300">';
echo 'echo '<param name="movie" value="game.swf" />';
echo 'echo '</object>';';
echo '} else {';
echo 'echo '<p>Sorry, your browser does not support Flash.</p>';';
echo '}';
echo '</script>';
?>