Question

<?php
//connecting to the database 
define('DB_HOST', 'localhost');
define('DB_NAME', 'visitor_list'); 
define('DB_USER','root');   
define('DB_PASSWORD','');
$con=mysql_connect(DB_HOST,DB_USER,DB_PASSWORD) or die("Failed to connect to            MySQL: " . mysql_error()); $db=mysql_select_db(DB_NAME,$con) or die("Failed to      connect to MySQL: " . 
mysql_error()); //inserting Record to the database
$dat1 = date("d");
$moth1 = date("m"); 
$year1 = date("Y");
$sql2 = 'SELECT * FROM  list1 ORDER BY card_no DESC LIMIT 1;';
$retval = mysql_query($con,$sql2 );
while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
{
/*echo "{$row['card_no']}";*/
$in= $row['card_no'];
$in++;
}

$ap_ty = $_POST['ap_ty'];
$per = $_POST['per'];
$no_vis = $_POST['no_vis'];
$nm_vis = $_POST['nm_vis'];
$co_nm = $_POST['co_nm'];
$ad = $_POST['ad'];
$po = $_POST['po'];
$ty_vis = $_POST['ty_vis'];
$met_nm = $_POST['met_nm'];
$dep = $_POST['dep'];
$des = $_POST['des'];
$por_met = $_POST['por_met'];
$vad = $_POST['vad'];

if(!isset($_POST['submit'])){
$query = "INSERT INTO list1    (card_no,d1,m1,y1,app_ty,no_per,area_vis,nm,com_nm,add1,pho,ty1_vis,met_with,depart,desi,pur_meet,vad_up) VALUES     ('$in','$dat1','$moth1','$year1','$ap_ty','$per','$no_vis','$nm_vis','$co_nm','$ad','$po','$ty_vis','$met_nm','$dep','$des','$por_met','$vad')";}
 $result = mysql_query($query);
 if($result)
 {
 echo '<script type="text/javascript">
 alert("Your Deatils has been Submitted"); 
 </script> ';
 header('location:index.php');
 }
 else 
 { die('Error: '.mysql_error($con)); } 
 mysql_close($con); 
 ?>

我想在查询中保存$in变量值但不能保存它。在插入时，它保存值0而不是实际值。

Answer 1

 <input type="text" class="form-control" name="vis_id" value=" <?php
                            $dbhost = 'localhost';
                            $dbuser = 'root';
                            $dbpass = '';
                            $conn = mysql_connect($dbhost, $dbuser, $dbpass);
                            if(! $conn )
                                {
                                die('Could not connect: ' . mysql_error());
                                }
                            $sql = 'SELECT * FROM  list1 ORDER BY card_no DESC LIMIT 1;';
                            mysql_select_db('visitor_list');
                            $retval = mysql_query( $sql, $conn );
                            if(! $retval )
                            {
                                die('Could not get data: ' . mysql_error());
                            }
                            while($row = mysql_fetch_array($retval, MYSQL_ASSOC))
                            {
                                /*echo "{$row['card_no']}";*/
                                $in= $row['card_no'];
                                $in+
                                $test = $in;
                            }
                            mysql_close($conn);
                         ?>"   disabled>

这是实际的代码在此输入框中，值正在递增帮我将这个输入框的值保存到另一个数据库文件中。

如何在PHP中保存循环中的变量值？

1 个答案: