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* @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Form\Filter; \defined('JPATH_PLATFORM') or die; use Joomla\CMS\Form\Form; use Joomla\CMS\Form\FormFilterInterface; use Joomla\Registry\Registry; /** * Form Filter class for phone numbers * * @since 4.0.0 */ class TelFilter implements FormFilterInterface { /** * Method to filter a field value. * * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `
` tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * @param Registry $input An optional Registry object with the entire data set to validate against the entire form. * @param Form $form The form object for which the field is being tested. * * @return mixed The filtered value. * * @since 4.0.0 */ public function filter(\SimpleXMLElement $element, $value, $group = null, Registry $input = null, Form $form = null) { $value = trim($value); // Does it match the NANP pattern? if (preg_match('/^(?:\+?1[-. ]?)?\(?([2-9][0-8][0-9])\)?[-. ]?([2-9][0-9]{2})[-. ]?([0-9]{4})$/', $value) == 1) { $number = (string) preg_replace('/[^\d]/', '', $value); if (substr($number, 0, 1) === '1') { $number = substr($number, 1); } if (substr($number, 0, 2) === '+1') { $number = substr($number, 2); } $result = '1.' . $number; } // If not, does it match ITU-T? elseif (preg_match('/^\+(?:[0-9] ?){6,14}[0-9]$/', $value) == 1) { $countrycode = substr($value, 0, strpos($value, ' ')); $countrycode = (string) preg_replace('/[^\d]/', '', $countrycode); $number = strstr($value, ' '); $number = (string) preg_replace('/[^\d]/', '', $number); $result = $countrycode . '.' . $number; } // If not, does it match EPP? elseif (preg_match('/^\+[0-9]{1,3}\.[0-9]{4,14}(?:x.+)?$/', $value) == 1) { if (strstr($value, 'x')) { $xpos = strpos($value, 'x'); $value = substr($value, 0, $xpos); } $result = str_replace('+', '', $value); } // Maybe it is already ccc.nnnnnnn? elseif (preg_match('/[0-9]{1,3}\.[0-9]{4,14}$/', $value) == 1) { $result = $value; } // If not, can we make it a string of digits? else { $value = (string) preg_replace('/[^\d]/', '', $value); if ($value != null && \strlen($value) <= 15) { $length = \strlen($value); // If it is fewer than 13 digits assume it is a local number if ($length <= 12) { $result = '.' . $value; } else { // If it has 13 or more digits let's make a country code. $cclen = $length - 12; $result = substr($value, 0, $cclen) . '.' . substr($value, $cclen); } } // If not let's not save anything. else { $result = ''; } } return $result; } }