apply_filters( 'tiny_mce_before_init', array $mceInit, string $editor_id )

Filters the TinyMCE config before init.

Parameters

$mceInit: (array) An array with TinyMCE config.
$editor_id: (string) Unique editor identifier, e.g. 'content'. Accepts 'classic-block' when called from block editor's Classic block.

Used By	Description
wp-includes/script-loader.php: wp_tinymce_inline_scripts()	Adds inline scripts required for the TinyMCE in the block editor.
wp-includes/class-wp-editor.php: _WP_Editors::editor_settings()

Version	Description
3.3.0	The `$editor_id` parameter was added.
2.5.0	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/tiny_mce_before_init