Adds a CSS class to a string.

Parameters

$class_to_addstringrequired

The CSS class to add.

$classesstringrequired

The string to add the CSS class to.

Return

Source

function add_cssclass( $class_to_add, $classes ) {
	if ( empty( $classes ) ) {
		return $class_to_add;
	}

	return $classes . ' ' . $class_to_add;
}

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