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user contact

// Register User Contact Methods
function custom_user_contact_methods( $user_contact_method ) {

	$user_contact_method['23'] = __( '23', 'text_domain' );

	return $user_contact_method; ;

}

// Hook into the 'user_contactmethods' filter
add_filter( 'user_contactmethods', 'custom_user_contact_methods' );