php 查询数据库返回json数据
程序员文章站
2022-04-28 14:49:39
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// 设置返回json格式数据
header('content-type:application/json;charset=utf8');
header('content-type:application/json;charset=utf8');
//连接数据库
$link = mysql_connect("localhost", "root", "root") or die("Unable to connect to the MySQL!");
mysql_query("SET NAMES 'UTF8'");
mysql_select_db("jilinwula", $link) or die("Unable to connect to the MySQL!");
// 获取分页参数
$page = 0 ;
$pageSize = 3;
if(!is_null($_GET["page"])) {
$page = $_GET["page"];
}
if(!is_null($_GET["pageSize"])) {
$pageSize = $_GET["pageSize"];
}
// 查询数据到数组中
$result = mysql_query("select username,password from userinfo limit " . $page . ", ". $pageSize ."");
$results = array();
while ($row = mysql_fetch_assoc($result)) {
$results[] = $row;
}
// 将数组转成json格式
echo json_encode($results);
// 关闭连接
mysql_free_result($result);
mysql_close($link);