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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 |
|---|---|
| 507 | $parent = get_page( $find_main_page ); |
| 508 | |
| 509 | if ( is_null( $parent ) ) |
| 510 | break; |
| 511 | |
| 512 | $level++; |
| 513 | $find_main_page = (int) $parent->post_parent; |
| 514 | |
| 515 | if ( !isset( $parent_name ) ) |
| 516 | $parent_name = apply_filters( 'the_title', $parent->post_title, $parent->ID ); |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | $pad = str_repeat( '— ', $level ); |
| 521 | ?> |
| 522 | <td <?php echo $attributes ?>><strong><?php if ( $can_edit_post && $post->post_status != 'trash' ) { ?><a class="row-title" href="<?php echo $edit_link; ?>" title="<?php echo esc_attr( sprintf( __( 'Edit “%s”' ), $title ) ); ?>"><?php echo $pad; echo $title ?></a><?php } else { echo $pad; echo $title; }; _post_states( $post ); echo isset( $parent_name ) ? ' | ' . $post_type_object->labels->parent_item_colon . ' ' . esc_html( $parent_name ) : ''; ?></strong> |
| 523 | <?php |
| 524 | } |
| 525 | else { |