警告：mysqli_num_rows（）要求参数1为mysqli_result，第21行给出的布尔值未找到数据

问题描述 投票：-1回答：1

我试图从MySQL搜索数据而不使用搜索按钮，但我有这个错误，并想知道如何解决这个问题？

我收到以下错误。

Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given

第21行是

if(mysqli_num_rows($result) > 0)

这是fetch的php代码

<?php
$connect = mysqli_connect("localhost", "root", "", "hms");
$output = '';
if(isset($_POST["query"]))
{
    $search = mysqli_real_escape_string($connect, $_POST["query"]);
    $query = "
    SELECT * FROM hms 
    WHERE lastname LIKE '%".$search."%'
    OR age LIKE '%".$search."%' 
    OR address LIKE '%".$search."%' 
    OR gender LIKE '%".$search."%' 
    ";
}
else
{
    $query = "
    SELECT * FROM hms ORDER BY patient_id WHERE 1";
}
$result = mysqli_query($connect, $query);
if(mysqli_num_rows($result) > 0)
{
    $output .= '<div class="table-responsive">
                    <table class="table table bordered">
                        <tr>
                            <th class="center">ID #</th>
                                                <th class="hidden-xs">Patient Name</th>
                                                <th>Address</th>
                                                <th>Age </th>
                                                <th>Sex</th>
                        </tr>';
    while($row = mysqli_fetch_array($result))
    {
        $output .= '
            <tr>
                <td>'.$row["lastname"].'</td>
                <td>'.$row["address"].'</td>
                <td>'.$row["age"].'</td>
                <td>'.$row["sex"].'</td>
            </tr>
        ';
    }
    echo $output;
}
else
{
    echo 'Data Not Found';
}
?>

这是我的耐药列表.php的代码

<?php
session_start();
//error_reporting(0);
include('include/config.php');
include('include/checklogin.php');
check_login();
?>
<!DOCTYPE html>
<html lang="en">
    <head>
        <title>Secretary | Patient List</title>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
        <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />


        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0">
        <meta name="apple-mobile-web-app-capable" content="yes">
        <meta name="apple-mobile-web-app-status-bar-style" content="black">
        <meta content="" name="description" />
        <meta content="" name="author" />
        <link href="http://fonts.googleapis.com/css?family=Lato:300,400,400italic,600,700|Raleway:300,400,500,600,700|Crete+Round:400italic" rel="stylesheet" type="text/css" />
        <link rel="stylesheet" href="vendor/bootstrap/css/bootstrap.min.css">
        <link rel="stylesheet" href="vendor/fontawesome/css/font-awesome.min.css">
        <link rel="stylesheet" href="vendor/themify-icons/themify-icons.min.css">
        <link href="vendor/animate.css/animate.min.css" rel="stylesheet" media="screen">
        <link href="vendor/perfect-scrollbar/perfect-scrollbar.min.css" rel="stylesheet" media="screen">
        <link href="vendor/switchery/switchery.min.css" rel="stylesheet" media="screen">
        <link href="vendor/bootstrap-touchspin/jquery.bootstrap-touchspin.min.css" rel="stylesheet" media="screen">
        <link href="vendor/select2/select2.min.css" rel="stylesheet" media="screen">
        <link href="vendor/bootstrap-datepicker/bootstrap-datepicker3.standalone.min.css" rel="stylesheet" media="screen">
        <link href="vendor/bootstrap-timepicker/bootstrap-timepicker.min.css" rel="stylesheet" media="screen">
        <link rel="stylesheet" href="assets/css/styles.css">
        <link rel="stylesheet" href="assets/css/plugins.css">
        <link rel="stylesheet" href="assets/css/themes/theme-1.css" id="skin_color" />
    </head>
    <body>
        <div id="app">      
<?php include('include/sidebar.php');?>
            <div class="app-content">


                    <?php include('include/header.php');?>
                <!-- end: TOP NAVBAR -->
                <div class="main-content" >
                    <div class="wrap-content container" id="container">
                        <!-- start: PAGE TITLE -->
                        <section id="page-title">
                            <div class="row">
                                <div class="col-sm-8">
                                    <h1 class="mainTitle">Secretary  | Patient List</h1>
                                                                    </div>
                                <ol class="breadcrumb">
                                    <li>
                                        <span>Secretary </span>
                                    </li>
                                    <li class="active">
                                        <span>Patient List</span>
                                    </li>
                                </ol>
                            </div>
                        </section>
                        <!-- end: PAGE TITLE -->
                        <!-- start: BASIC EXAMPLE -->



                        <!-- This is the Search bar --> 
                    <div class="container">
                        <div class="input-group">
                            <span class="input-group-addon">Search</span>
                            <input type="text" name="search_text" id="search_text" placeholder="Search by Patient Information" class="form-control" />
                        </div>
                    <br />
                    <div id="result"></div>
                    </div>
                    <div style="clear:both"></div>

                        <div class="container-fluid container-fluid bg-white">


                                    <div class="row">
                                <div class="col-md-12">

                                    <p style="color:red;"><?php echo htmlentities($_SESSION['msg']);?>
                                <?php echo htmlentities($_SESSION['msg']="");?></p> 
                                    <table class="table table-hover" id="sample-table-1">
                                        <thead>
                                            <tr>
                                                <th class="center">ID #</th>
                                                <th class="hidden-xs">Patient Name</th>
                                                <th>Address</th>
                                                <th>Age </th>
                                                <th>Sex</th>

                                            </tr>
                                        </thead>
                                        <tbody>
<?php
$sql=mysqli_query($con,"select * from patient ");
$cnt=1;
while($row=mysqli_fetch_array($sql))
{
?>

                                            <tr>
                                                <td class="center"><?php echo $cnt;?>.</td>
                                                <td class="hidden-xs"><?php echo $row['lastname'];?></td>
                                                <td><?php echo $row['age'];?></td>
                                                <td><?php echo $row['address'];?></td>
                                                <td><?php echo $row['gender'];?></td>

                                            </tr>

                                            <?php 
$cnt=$cnt+1;
                                             }?>


                                        </tbody>
                                    </table>
                                </div>
                            </div>
                                </div>

                        <!-- end: BASIC EXAMPLE -->
                        <!-- end: SELECT BOXES -->

                    </div>
                </div>
            </div>
            <!-- start: FOOTER -->
    <?php include('include/footer.php');?>
            <!-- end: FOOTER -->

            <!-- start: SETTINGS -->
    <?php include('include/setting.php');?>

            <!-- end: SETTINGS -->
        </div>
        <!-- start: MAIN JAVASCRIPTS -->
        <script src="vendor/jquery/jquery.min.js"></script>
        <script src="vendor/bootstrap/js/bootstrap.min.js"></script>
        <script src="vendor/modernizr/modernizr.js"></script>
        <script src="vendor/jquery-cookie/jquery.cookie.js"></script>
        <script src="vendor/perfect-scrollbar/perfect-scrollbar.min.js"></script>
        <script src="vendor/switchery/switchery.min.js"></script>
        <!-- end: MAIN JAVASCRIPTS -->
        <!-- start: JAVASCRIPTS REQUIRED FOR THIS PAGE ONLY -->
        <script src="vendor/maskedinput/jquery.maskedinput.min.js"></script>
        <script src="vendor/bootstrap-touchspin/jquery.bootstrap-touchspin.min.js"></script>
        <script src="vendor/autosize/autosize.min.js"></script>
        <script src="vendor/selectFx/classie.js"></script>
        <script src="vendor/selectFx/selectFx.js"></script>
        <script src="vendor/select2/select2.min.js"></script>
        <script src="vendor/bootstrap-datepicker/bootstrap-datepicker.min.js"></script>
        <script src="vendor/bootstrap-timepicker/bootstrap-timepicker.min.js"></script>
        <!-- end: JAVASCRIPTS REQUIRED FOR THIS PAGE ONLY -->
        <!-- start: CLIP-TWO JAVASCRIPTS -->
        <script src="assets/js/main.js"></script>
        <!-- start: JavaScript Event Handlers for this page -->
        <script src="assets/js/form-elements.js"></script>
        <script>
            jQuery(document).ready(function() {
                Main.init();
                FormElements.init();
            });
        </script>
        <!-- end: JavaScript Event Handlers for this page -->
        <!-- end: CLIP-TWO JAVASCRIPTS -->



        <!-- Code script for search -->
        <script>
$(document).ready(function(){
    load_data();
    function load_data(query)
    {
        $.ajax({
            url:"fetch.php",
            method:"post",
            data:{query:query},
            success:function(data)
            {
                $('#result').html(data);
            }
        });
    }

    $('#search_text').keyup(function(){
        var search = $(this).val();
        if(search != '')
        {
            load_data(search);
        }
        else
        {
            load_data();            
        }
    });
});
</script>
    </body>
</html>
mysqli
1个回答
0
投票

更正以下代码：

else
{
    $query = "
    SELECT * FROM hms ORDER BY patient_id WHERE 1";
}

替换为：

else
{
    $query = "
    SELECT * FROM hms ORDER BY patient_id";
}

请删除WHERE 1因为在ORDER BY后我们不会使用WHERE条件。

请尝试我希望它应该工作。

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