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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 |
|---|---|
| 528 | |
| 529 | $settings = self::default_settings(); |
| 530 | $settings['plugins'] = implode( ',', $plugins ); |
| 531 | |
| 532 | if ( ! empty( $mce_external_plugins ) ) { |
| 533 | $settings['external_plugins'] = wp_json_encode( $mce_external_plugins ); |
| 534 | } |
| 535 | |
| 536 | /** This filter is documented in wp-admin/includes/media.php */ |
| 537 | if ( apply_filters( 'disable_captions', '' ) ) { |
| 538 | $settings['wpeditimage_disable_captions'] = true; |
| 539 | } |
| 540 | |
| 541 | $mce_css = $settings['content_css']; |
| 542 | |
| 543 | // The `editor-style.css` added by the theme is generally intended for the editor instance on the Edit Post screen. |
| 544 | // Plugins that use wp_editor() on the front-end can decide whether to add the theme stylesheet |
| 545 | // by using `get_editor_stylesheets()` and the `mce_css` or `tiny_mce_before_init` filters, see below. |
| 546 | if ( is_admin() ) { |