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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 |
|---|---|
| 588 | 'redo', |
| 589 | 'wp_help', |
| 590 | ); |
| 591 | |
| 592 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 593 | $toolbar2 = apply_filters( 'mce_buttons_2', $toolbar2, 'classic-block' ); |
| 594 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 595 | $toolbar3 = apply_filters( 'mce_buttons_3', array(), 'classic-block' ); |
| 596 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 597 | $toolbar4 = apply_filters( 'mce_buttons_4', array(), 'classic-block' ); |
| 598 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
| 599 | $external_plugins = apply_filters( 'mce_external_plugins', array(), 'classic-block' ); |
| 600 | |
| 601 | $tinymce_settings = array( |
| 602 | 'plugins' => implode( ',', $tinymce_plugins ), |
| 603 | 'toolbar1' => implode( ',', $toolbar1 ), |
| 604 | 'toolbar2' => implode( ',', $toolbar2 ), |
| 605 | 'toolbar3' => implode( ',', $toolbar3 ), |
| 606 | 'toolbar4' => implode( ',', $toolbar4 ), |