Using TinyMce with textareas in meta boxes on custom post types

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Here’s a pastebin with your code included.

Get the old value of the tinyMCE

$meta_biography = get_post_meta( $post->ID, 'meta_biography', true );

Call the TinyMCE Editor

wp_editor( $meta_biography, 'biography', array(
    'wpautop'       => true,
    'media_buttons' => false,
    'textarea_name' => 'meta_biography',
    'textarea_rows' => 10,
    'teeny'         => true
) );

Save The Editor Value or if nothing is there – delete old values.

if( isset( $_POST['meta_biography'] ) && $_POST['meta_biography'] != '' ) {
    update_post_meta( $post_id, 'meta_biography', $_POST['meta_biography'] );
} else {
    delete_post_meta( $post_id, 'meta_biography' );
}

If you want to add more options to the editor – You can view the Codex or Check out this nice WPTuts Article. You want to use the tinymce and pass it an array of settings. You might have to remove the teeny => true in the wp_editor() since the Codex says that it will only use minimal editor configuration.

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