Ajax post数据查询

<?php
    $server = '127.0.0.1';
    $user = 'root';
    $password = '';
    $database = 'yiibaidb';
    $officecode = $_POST['officecode'];

    $conn = new mysqli($server, $user, $password, $database);
    if ($conn->errno) {
        die("数据库连接失败！" . $conn->error);
    }
    $sql = 'SELECT * FROM employees where officeCode=' . "'$officecode'";
    $result = $conn->query($sql);
    if ($result->num_rows > 0) {
        $arr = array();
        while ($row = $result->fetch_assoc()) {
            $arr[] = $row;
        }
        echo json_encode($arr);
    }
?>

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="css/bootstrap4.css">
    <script src="js/jquery-3.3.1"></script>
    <title>Document</title>
</head>

<body style="padding-top:30px">
    <div class="container">
        <input type="text" name="Offcode" id="Offcode">
        <button id="btnQuery">查询</button>
        <div id="table"></div>
    </div>
    <script>
        $(function () {
            $("#btnQuery").click(function () {
                $.ajax({
                    type: "post",
                    url: "json.php",
                    data: { 'officecode': $("#Offcode").val() },
                    dataType: "json",
                    success: function (response) {
                        $("#tab").remove();
                        var item;
                        item = "<table id="tab" class="table table-bordered table-sm"> <tr> <th>firstName</th> <th>lastName</th> <th>email</th> </tr>"
                        $.each(response, function (index, value) {
                            item += '<tr><td>' + value.firstName + '</td><td>' + value.lastName + '</td><td>' + value.email + '</td></tr>';
                        });
                        item += "</table>";
                        $("#table").append(item);
                    }
                });
            });
        });
    </script>
</body>

</html>

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原文地址：https://www.cnblogs.com/liessay/p/8392027.html