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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 132 | * @type string $title Title attribute. |
| 133 | * @type string $target Target attribute. |
| 134 | * @type string $rel The rel attribute. |
| 135 | * @type string $href The href attribute. |
| 136 | * } |
| 137 | * @param object $item The current menu item. |
| 138 | * @param array $args An array of {@see wp_nav_menu()} arguments. |
| 139 | * @param int $depth Depth of menu item. Used for padding. |
| 140 | */ |
| 141 | $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth ); |
| 142 | |
| 143 | $attributes = ''; |
| 144 | foreach ( $atts as $attr => $value ) { |
| 145 | if ( ! empty( $value ) ) { |
| 146 | $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value ); |
| 147 | $attributes .= ' ' . $attr . '="' . $value . '"'; |
| 148 | } |
| 149 | } |
| 150 | |