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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 |
---|---|
160 | * no filter for modifying the opening and closing <li> for a menu item. |
161 | * |
162 | * @since 3.0.0 |
163 | * |
164 | * @param string $item_output The menu item's starting HTML output. |
165 | * @param object $item Menu item data object. |
166 | * @param int $depth Depth of menu item. Used for padding. |
167 | * @param array $args An array of arguments. @see wp_nav_menu() |
168 | */ |
169 | $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); |
170 | } |
171 |
|
172 | /** |
173 | * Ends the element output, if needed. |
174 | * |
175 | * @see Walker::end_el() |
176 | * |
177 | * @since 3.0.0 |
178 | * |