Native php check out traversal acquired data, and outputs

Connection method: $ db = mysqli_connect ( "127.0.0.1", "username", "password", "database name") or die ( "Mysql connection failed" mysqli_connect_error ().);

$ Sql ​​= "sql statement";

$res=$db->query($sql);

$str='';

foreach($res as $k => $v){

　　$str .=implode(',',$v) . '-';
}

$str =substr($str ,0, strlen($str) -1);

echo $str;

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Json format output

$arr=array();

foreach($res as $k => $v){

　　if($v['open']==0){

　　　　$list[$k]['id'] = $v['id'];

　　　　Arrows value pair format

　　}　

　　$list[$k]['id'] = $v['id'];　

}

$json =json_encode($list);

echo $json;

 

 

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ajax return output on the page

function fangru(arr){

// arrj is to check out the data '-' division

may BRR = [];

var str ="";

for(var i =0;i<arr.length;i++){

　　brr=arr[i].split(',');

　　str +='<li onclick=\" xiangqing('+brr[0]+')\">\n'+

　　　　　'      <div class=\"a-content\">\n' +

　　　　   '          　　<img class=\"left\" src=" '+brr[1]+' ">\n'+

　　　　　'                     <h3 class=\"right\">\n'+

　　　　　BRR [3] +

　　　　　'                       </h3>\n'+

　　　　　'        </div>\n'+

　　　　　'<li>';

}

// then put data into html inside

　　$('.a-content').html(str);

}