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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 |
|---|---|
| 461 | 'indent', |
| 462 | 'undo', |
| 463 | 'redo', |
| 464 | 'wp_help', |
| 465 | ); |
| 466 | |
| 467 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 468 | $toolbar2 = apply_filters( 'mce_buttons_2', $toolbar2, 'classic-block' ); |
| 469 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 470 | $toolbar3 = apply_filters( 'mce_buttons_3', array(), 'classic-block' ); |
| 471 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 472 | $toolbar4 = apply_filters( 'mce_buttons_4', array(), 'classic-block' ); |
| 473 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 474 | $external_plugins = apply_filters( 'mce_external_plugins', array(), 'classic-block' ); |
| 475 | |
| 476 | $tinymce_settings = array( |
| 477 | 'plugins' => implode( ',', $tinymce_plugins ), |
| 478 | 'toolbar1' => implode( ',', $toolbar1 ), |
| 479 | 'toolbar2' => implode( ',', $toolbar2 ), |