Filters the fourth-row list of TinyMCE buttons (Visual tab).
$mce_buttons_4array$editor_idstringwp-includes/class-wp-editor.php:733_WP_Editors::editor_settings()wp-includes/script-loader.php:596wp_tinymce_inline_scripts()<?php * @since 3.3.0 The `$editor_id` parameter was added. * * @param array $mce_buttons_4 Fourth-row list of buttons. * @param string $editor_id Unique editor identifier, e.g. 'content'. Accepts 'classic-block' * when called from block editor's Classic block. */ $mce_buttons_4 = apply_filters( 'mce_buttons_4', array(), $editor_id ); } $body_class = $editor_id; $post = get_post(); if ( $post ) {Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.