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<?php |
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/** |
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* LSX functions and definitions - Navigation Walker. |
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* |
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* @package lsx |
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* @subpackage navigation |
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* @category bootstrap-walker |
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*/ |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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add_filter( 'nav_menu_item_id', '__return_null' ); |
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if ( ! function_exists( 'lsx_nav_menu_css_class' ) ) : |
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/** |
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* Remove the id="" on nav menu items. |
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* Return 'menu-slug' for nav menu classes. |
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* |
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* @package lsx |
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* @subpackage navigation |
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* @category bootstrap-walker |
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*/ |
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function lsx_nav_menu_css_class( $classes, $item ) { |
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$slug = sanitize_title( $item->title ); |
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$classes = preg_replace( '/(current(-menu-|[-_]page[-_])(item|parent|ancestor))/', 'active', $classes ); |
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$classes = preg_replace( '/^((menu|page)[-_\w+]+)+/', '', $classes ); |
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$classes[] = 'menu-' . $slug; |
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$classes = array_unique( $classes ); |
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return array_filter( $classes, 'lsx_is_element_empty' ); |
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} |
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endif; |
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add_filter( 'nav_menu_css_class', 'lsx_nav_menu_css_class', 10, 2 ); |
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if ( ! function_exists( 'lsx_nav_menu_args' ) ) : |
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/** |
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* Clean up wp_nav_menu_args. |
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* |
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* Remove the container. |
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* Use LSX_Nav_Walker() by default. |
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* |
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* @package lsx |
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* @subpackage navigation |
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* @category bootstrap-walker |
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*/ |
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function lsx_nav_menu_args( $args = '' ) { |
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$roots_nav_menu_args['container'] = false; |
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if ( ! $args['items_wrap'] ) { |
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$roots_nav_menu_args['items_wrap'] = '<ul class="%2$s">%3$s</ul>'; |
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} |
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if ( current_theme_supports( 'bootstrap-top-navbar' ) && ! $args['depth'] ) { |
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$roots_nav_menu_args['depth'] = 2; |
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} |
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if ( ! $args['walker'] ) { |
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$roots_nav_menu_args['walker'] = new LSX_Nav_Walker(); |
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} |
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return array_merge( $args, $roots_nav_menu_args ); |
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} |
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endif; |
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add_filter( 'wp_nav_menu_args', 'lsx_nav_menu_args' ); |
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lightspeeddevelopment /
lsx
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.