test

<?php
    require_once 'db.php';
 
    $pageNow = 1;//当前页
    $pageSize = 5;//一页多少行
    $lineCount = 0;//总记录书
    $pageCount = 0;//总页数
     
    if(isset($_GET['pageNow'])){
        $pageNow = $_GET['pageNow'];
    }
     
    $sql = "select count(*) as count from channel_package";
    $res=$conn->query($sql);
    while($row=$res->fetch_assoc()){
        $lineCount = $row['count'];
    }
    $pageCount = ceil($lineCount/$pageSize);
    $sql = "select * from channel_package limit ".($pageNow-1) * $pageSize.", $pageSize";
    $res=$conn->query($sql);
    $data = array();
    while($row=$res->fetch_assoc()){
        array_push($data,array(
            "id"        =>   $row['id'],
            "id_string" =>   $row['id_string'],
        ));
    }
    echo json_encode(array("data"=>$data));
?>