這是search.php的代碼。我想按如下方式在輸入框中按日期搜索。PHP - 注意:未定義索引:不顯示數據
<form action="visitor-print.php">
<div class="col-sm-3 text-center"><h3>Date</h3>
<input type="text" class="form-control" name="dat" placeholder="Enter Date">
<p class="help-block">Month Format 1,2,3,....29,30..</p>
<button class="btn btn-default"><span>Submit</span></button>
</div>
</form>
這是我的訪問者print.php代碼,我得到的DAT未定義指數錯誤(這是從其他網頁)
<?php
$dbhost = 'localhost';
$dbuser = 'root';
$dbpass = '';
$conn = mysql_connect($dbhost, $dbuser, $dbpass);
mysql_select_db('visitor_list');
if(! $conn)
{
die('Could not connect: ' . mysql_error());
}
$sql = "SELECT * FROM list1 WHERE d1 = '". $_POST["dat"] . "' ";
$retval = mysql_query( $sql,$conn) or die("Error: ".mysql_error($conn));
?>
<div class="container">
<h3 class="text-center">User Feed-Back Details</h3><br />
<div class="table-responsive" id="employee_table">
<table class="table table-bordered">
<tr>
<th width="10%">Visitor Name</th>
<th width="10%">Address</th>
<th width="10%">Area to Visit</th>
<th width="10%">Phone No.</th>
<th width="20%">Want to meet with </th>
<th width="50%">Purpose of meeting</th>
</tr>
<?php
while($row = mysql_fetch_array($retval,MYSQLI_BOTH))
{
?>
<tr>
<td><?php echo $row['nm']; ?></td>
<td><?php echo $row['add1']; ?></td>
<td><?php echo $row['area_vis']; ?></td>
<td><?php echo $row['y1']; ?></td>
<td><?php echo $row['app_ty']; ?></td>
<td><?php echo $row['no_per']; ?></td>
</tr>
<?php
}
?>
</table>
</div>
<div align="center">
<button name="create_excel" id="create_excel" class="btn btn-success">Create Excel File</button>
</div>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<script>
$(document).ready(function(){
$('#create_excel').click(function(){
var excel_data = $('#employee_table').html();
var page = "excel.php?data=" + excel_data;
window.location = page;
});
});
</script>
問題: 注意:未定義指數:DAT在d :\ wamp \ www \ radissun訪客\ visitor-print.php在線12 並沒有顯示來自mysql的數據
MISSING表單提交 – JYoThI
– JYoThI
不應'mysql_query($ sql,$ conn)'爲'mysql_query($ sql)'您已連接所以不需要將連接字符串添加到查詢中...... – NewToJS