eXorithm – Execute Algorithm: View / Run Algorithm validate_phone

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function validate_phone ($number
{
  $number = preg_replace"/[().- ]/"''$number);
  $valid = "/^1?[2-9][0-9]{2}[2-9][0-9]{2}[0-9]{4}$/"
  if ( preg_match$valid$number ) == 1 ) {
    return true;
  } else {
    return false;
  }