手机号验证及归属地

<?php  // 手机号验证  function checkMobileValidity($mobilephone){  $exp = "/^13[0-9]{1}[0-9]{8}$|15[012356789]{1}[0-9]{8}$|18[012356789]{1}[0-9]{8}$|14[57]{1}[0-9]$/";  if(preg_match($exp,$mobilephone)){  return true;  }else{  return false;  }  }  // 手机号码归属地(返回: 如 广东移动)  function checkMobilePlace($mobilephone){  $url = "http://tcc.taobao.com/cc/json/mobile_tel_segment.htm?tel=".$mobilephone."&t=".time();  $content = file_get_contents($url);  $p = substr($content, 56, 4);  $mo = substr($content, 81, 4);  return $str = conv2utf8($p).conv2utf8($mo);  }  // 转换字符串编码为 UTF8  function conv2utf8($text){  return mb_convert_encoding($text,'UTF-8','ASCII,GB2312,GB18030,GBK,UTF-8');  }