How PHP gets the local phone number

<?phpfunction inquiry_number_infor ($phonenumber)/** incoming mobile phone number, through the API to XML format data, further parsing the XML, and finally return the corresponding number information array. * * @param string $phonenumber * * @return array*/{$url = "Http://api.showji.com/Locating/default    . aspx?m= $phonenumber &output=xml&callback=querycallback ";    $lines _array = file ($url);     $lines _string = Implode (", $lines _array);    Echo htmlspecialchars ($lines _string);    echo "</br>";    $p = Xml_parser_create ();    Xml_parse_into_struct ($p, $lines _string, $vals, $index);    Xml_parser_free ($p);    $return _arr = Array ();         foreach ($vals as $val) {$key = $val ["tag"];             if ($key! = "Queryresponse") {$value = $val ["Value"];         $return _arr[$key] = $value;    } if ($key = = = "QueryResult" && $value = = = "False") break; } return $return _arr;} $ret = Inquiry_number_infor ("11210982674 "),//$ret = Inquiry_number_infor (" 15210982674 ");p Rint_r ($ret); 

How PHP gets the local phone number