<?php
header("Content-type:application/json");
//定义参数
$keywords = $_GET["keywords"];
//获取数据库配置
require_once("config.php");
//连接数据库
$con = mysql_connect($host,$username,$password);
  if (!$con)
    {
      die('连接数据库失败，失败原因：' . mysql_error());
    }
  //设置数据库字符集  
  mysql_query("SET NAMES UTF8");
  //查询数据库
  mysql_select_db($db, $con);
  //过滤关键词左右空格
  $keyword = trim($keywords);
  if (empty($keyword)) {
  //如果关键词为空，则返回result=0
  echo "[{\"result\":\"0\"}]";
    }else{
      $result = mysql_query("SELECT * FROM $tb WHERE name1 = '$keyword' OR email = '$keyword' ORDER BY ID DESC");
      $num = mysql_num_rows($result);
      if ($num) {
        $search_result = array();
          while($row = mysql_fetch_array($result)){
              $search_result[] = $row;
          }
          // 将数组转成json格式
          echo json_encode($search_result);
  
  }else{
    //如果查询无果，则返回result=1
    echo "[{\"result\":\"1\"}]";
  }
}
?>