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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 |
---|---|
411 | * one of the 'mce_buttons' filters. |
412 | * |
413 | * @since 2.5.0 |
414 | * @since 5.3.0 The `$editor_id` parameter was added. |
415 | * |
416 | * @param array $external_plugins An array of external TinyMCE plugins. |
417 | * @param string $editor_id Unique editor identifier, e.g. 'content'. Accepts 'classic-block' |
418 | * when called from block editor's Classic block. |
419 | */ |
420 | $mce_external_plugins = apply_filters( 'mce_external_plugins', array(), $editor_id ); |
421 |
|
422 | $plugins = array( |
423 | 'charmap', |
424 | 'colorpicker', |
425 | 'hr', |
426 | 'lists', |
427 | 'media', |
428 | 'paste', |
429 | 'tabfocus', |