Laravel macro to display first validation error for the field

Laravel first field error Macro

/**
 * Returns first error message for a field, if any, in html
 */
Form::macro('first_field_error', function($field_name){
	$html = array();
	$errors = Session::get('errors');

	if( $errors->has( $field_name ) ){
		array_push( $html, '<div class="form-error">' );
		array_push( $html, $errors->first( $field_name ) );
		array_push( $html, '</div>' );
	}

	return implode("", $html);
});