/*
Theme Name:           Flatsome
Theme URI:            http://flatsome.uxthemes.com/
Author:               UX-Themes
Author URI:           http://www.uxthemes.com/
Description:          Multi-Purpose Responsive WooCommerce Theme
Version:              3.15.4
Requires at least:    5.0.0
Requires PHP:         5.6.20
WC requires at least: 4.4.0
Text Domain:          flatsome
License:              http://themeforest.net/licenses
License URI:          http://themeforest.net/licenses
*/


/***************
All custom CSS should be added to Flatsome > Advanced > Custom CSS,
or in the style.css of a Child Theme.
***************/
//kiem tra so dt
function custom_filter_wpcf7_is_tel( $result, $tel ){ 
  $result = preg_match( '/^(09|03|07|08|05)+([0-9]{8})$/', $tel ); 
  return $result; 
} 
add_filter( 'wpcf7_is_tel', 'custom_filter_wpcf7_is_tel', 10, 2 );