woocommerce_email_editor_send_preview_email_personalizer_context │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_email_editor_send_preview_email_personalizer_context', 'wp_kama_woocommerce_email_editor_send_preview_personalizer_context_filter' );

/**
 * Function for `woocommerce_email_editor_send_preview_email_personalizer_context` filter-hook.
 * 
 * @param  $personalizer_context 
 *
 * @return 
 */
function wp_kama_woocommerce_email_editor_send_preview_personalizer_context_filter( $personalizer_context ){

	// filter...
	return $personalizer_context;
}

$personalizer_context

-

Where the hook is called

$personalizer_context = apply_filters( 'woocommerce_email_editor_send_preview_email_personalizer_context', $personalizer_context );

Where the hook is used in WooCommerce

add_filter( 'woocommerce_email_editor_send_preview_email_personalizer_context', array( $this, 'update_send_preview_email_personalizer_context' ) );