PHP使用mysqli同時(shí)執(zhí)行多條sql查詢語(yǔ)句的實(shí)例

?php 
$mysqli = new mysqli("localhost","root","","123456");
$mysqli->query("set names 'utf8'");
//多條sql語(yǔ)句
$sql = "select id,name from `user`;";
$sql .= "select id,mail from `user`";
if ($mysqli->multi_query($sql)){//使用multi_query()執(zhí)行一條或多條sql語(yǔ)句
 do{
 if ($rs = $mysqli->store_result()){//store_result()方法獲取第一條sql語(yǔ)句查詢結(jié)果
  while ($row=$rs->fetch_row()){
  var_dump($row);
  echo "br>";
  }
  $rs->Close(); //關(guān)閉結(jié)果集
  if ($mysqli->more_results()){ //判斷是否還有更多結(jié)果集
  echo "hr>";
  }
 }
 }while($mysqli->next_result()); //next_result()方法獲取下一結(jié)果集，返回bool值
}
$mysqli->close(); //關(guān)閉數(shù)據(jù)庫(kù)連接
?>