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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 |
|---|---|
| 627 | /** |
| 628 | * Filters the list of teenyMCE buttons (Text tab). |
| 629 | * |
| 630 | * @since 2.7.0 |
| 631 | * @since 3.3.0 The `$editor_id` parameter was added. |
| 632 | * |
| 633 | * @param array $mce_buttons An array of teenyMCE buttons. |
| 634 | * @param string $editor_id Unique editor identifier, e.g. 'content'. |
| 635 | */ |
| 636 | $mce_buttons = apply_filters( 'teeny_mce_buttons', $mce_buttons, $editor_id ); |
| 637 | $mce_buttons_2 = array(); |
| 638 | $mce_buttons_3 = array(); |
| 639 | $mce_buttons_4 = array(); |
| 640 | } else { |
| 641 | $mce_buttons = array( |
| 642 | 'formatselect', |
| 643 | 'bold', |
| 644 | 'italic', |
| 645 | 'bullist', |