forked from joomla/joomla-cms
/
TelFilter.php
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/
TelFilter.php
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<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
* @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 __DEPLOY_VERSION__
*/
class TelFilter implements FormFilterInterface
{
/**
* Method to filter a field value.
*
* @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` 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 __DEPLOY_VERSION__
*/
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;
}
}