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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 |
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563 |
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564 | /** |
565 | * Filter the first-row list of TinyMCE buttons (Visual tab). |
566 | * |
567 | * @since 2.0.0 |
568 | * |
569 | * @param array $buttons First-row list of buttons. |
570 | * @param string $editor_id Unique editor identifier, e.g. 'content'. |
571 | */ |
572 | $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 ); |
573 |
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574 | /** |
575 | * Filter the second-row list of TinyMCE buttons (Visual tab). |
576 | * |
577 | * @since 2.0.0 |
578 | * |
579 | * @param array $buttons Second-row list of buttons. |
580 | * @param string $editor_id Unique editor identifier, e.g. 'content'. |
581 | */ |