php code in header

Hi, sorry for the delayed answer.

You can use the plugin functionality in your code passing the shortcode arguments as an array to the Hide_This class.

Here’s an example of how it can be done:

// Put the content you want to show or hide conditionally inside a variable.
$content = 'My HTML contents.';

if ( class_exists( 'Hide_This' ) ) {
	// Construct an array with the shortcode arguments.
	$atts = array(
		'for'     => 'all',
		'exclude' => 'username:foo',
	);

	$hide_this = new Hide_This( $atts, $content );

	echo $hide_this->content;
} else {
	echo $content;
}

You can see the full list of arguments and accepted values here: https://www.ads-software.com/plugins/hide-this/.

Hope this helps ??