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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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556 | ); |
557 |
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558 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
559 | $toolbar2 = apply_filters( 'mce_buttons_2', $toolbar2, 'classic-block' ); |
560 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
561 | $toolbar3 = apply_filters( 'mce_buttons_3', array(), 'classic-block' ); |
562 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
563 | $toolbar4 = apply_filters( 'mce_buttons_4', array(), 'classic-block' ); |
564 | /** This filter is documented in wp-includes/class-wp-editor.php */ |
565 | $external_plugins = apply_filters( 'mce_external_plugins', array(), 'classic-block' ); |
566 |
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567 | $tinymce_settings = array( |
568 | 'plugins' => implode( ',', $tinymce_plugins ), |
569 | 'toolbar1' => implode( ',', $toolbar1 ), |
570 | 'toolbar2' => implode( ',', $toolbar2 ), |
571 | 'toolbar3' => implode( ',', $toolbar3 ), |
572 | 'toolbar4' => implode( ',', $toolbar4 ), |
573 | 'external_plugins' => wp_json_encode( $external_plugins ), |
574 | 'classic_block_editor' => true, |