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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 |
|---|---|
| 464 | * @access protected |
| 465 | * |
| 466 | * @return int |
| 467 | */ |
| 468 | function get_items_per_page( $option, $default = 20 ) { |
| 469 | $per_page = (int) get_user_option( $option ); |
| 470 | if ( empty( $per_page ) || $per_page < 1 ) |
| 471 | $per_page = $default; |
| 472 | |
| 473 | return (int) apply_filters( $option, $per_page ); |
| 474 | } |
| 475 | |
| 476 | /** |
| 477 | * Display the pagination. |
| 478 | * |
| 479 | * @since 3.1.0 |
| 480 | * @access protected |
| 481 | */ |
| 482 | function pagination( $which ) { |