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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 |
|---|---|
| 530 | ); |
| 531 | |
| 532 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 533 | $toolbar2 = apply_filters( 'mce_buttons_2', $toolbar2, 'classic-block' ); |
| 534 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 535 | $toolbar3 = apply_filters( 'mce_buttons_3', array(), 'classic-block' ); |
| 536 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 537 | $toolbar4 = apply_filters( 'mce_buttons_4', array(), 'classic-block' ); |
| 538 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 539 | $external_plugins = apply_filters( 'mce_external_plugins', array(), 'classic-block' ); |
| 540 | |
| 541 | $tinymce_settings = array( |
| 542 | 'plugins' => implode( ',', $tinymce_plugins ), |
| 543 | 'toolbar1' => implode( ',', $toolbar1 ), |
| 544 | 'toolbar2' => implode( ',', $toolbar2 ), |
| 545 | 'toolbar3' => implode( ',', $toolbar3 ), |
| 546 | 'toolbar4' => implode( ',', $toolbar4 ), |
| 547 | 'external_plugins' => wp_json_encode( $external_plugins ), |
| 548 | 'classic_block_editor' => true, |