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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 |
|---|---|
| 548 | |
| 549 | /** |
| 550 | * Filter the first-row list of TinyMCE buttons (Visual tab). |
| 551 | * |
| 552 | * @since 2.0.0 |
| 553 | * |
| 554 | * @param array $buttons First-row list of buttons. |
| 555 | * @param string $editor_id Unique editor identifier, e.g. 'content'. |
| 556 | */ |
| 557 | $mce_buttons = apply_filters( 'mce_buttons', array('bold', 'italic', 'strikethrough', 'bullist', 'numlist', 'blockquote', 'hr', 'alignleft', 'aligncenter', 'alignright', 'link', 'unlink', 'wp_more', 'spellchecker', 'fullscreen', 'wp_adv' ), $editor_id ); |
| 558 | |
| 559 | /** |
| 560 | * Filter the second-row list of TinyMCE buttons (Visual tab). |
| 561 | * |
| 562 | * @since 2.0.0 |
| 563 | * |
| 564 | * @param array $buttons Second-row list of buttons. |
| 565 | * @param string $editor_id Unique editor identifier, e.g. 'content'. |
| 566 | */ |