这是我在MYSQL中的表，我想为membership_id的contacts_member_id插入唯一记录，表示member_id = 1可以有多条记录，但它应该是唯一的，我在PHP页面插入，但编码不起作用正常。
create table contact_viewed(
contact_viewed_id int(11) not null auto_increment,
contacted_member_id int (11) not null,
member_id int(11) not null,
primary key(contact_viewed_id)
);
我的php文件如下所示
<?php
include_once 'dbconfig.php';
if (! $user->is_loggedin ()) {
$user->redirect ( 'login.php' );
}
$m_id = $_SESSION ['user_session'];
$stmt = $DB_con->prepare ( "SELECT * FROM member WHERE member_id=:member_id" );
$stmt->execute ( array (
":member_id" => $m_id
) );
$userRow = $stmt->fetch ( PDO::FETCH_ASSOC );
?>
<?php
$stmt7 = $DB_con->prepare ( "SELECT * FROM contact_viewed WHERE member_id=:member_id" );
$stmt7->bindParam ( ":member_id", $m_id );
$stmt7->execute ();
$row2 = $stmt7->fetchAll ();
if ($stmt7->rowCount () > 0) {
foreach ( $row2 as $data ) {
if ($data ['member_id'] == $m_id) {enter code here
if($data ['contacted_member_id'] == $_GET['id']){
echo "do nothing1";
}
else{
$stmt6 = $DB_con->prepare ( "INSERT INTO contact_viewed(contacted_member_id,member_id) VALUES(:contacted_member_id,:member_id)" );
$stmt6->bindParam ( ":contacted_member_id", $_GET ['id'] );
$stmt6->bindParam ( ":member_id", $m_id );
$stmt6->execute ();
echo "hello";
}
}
}
}
else{
$stmt6 = $DB_con->prepare ( "INSERT INTO contact_viewed(contacted_member_id,member_id) VALUES(:contacted_member_id,:member_id)" );
$stmt6->bindParam ( ":contacted_member_id", $_GET ['id'] );
$stmt6->bindParam ( ":member_id", $m_id );
$stmt6->execute ();
$available_contact = $userRow ['available_contact'];
$available_contact = $available_contact - 1;
$stmt5 = $DB_con->prepare ( "UPDATE member SET available_contact=:available_contact WHERE member_id=:member_id" );
$stmt5->bindParam ( ":available_contact", $available_contact );
$stmt5->bindParam ( ":member_id", $m_id );
$stmt5->execute ();
echo "ok ok";
}
?>
<?php
require 'script.php';
?>
<!-- close all connection at the end of the page -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<?php
require 'css.php';
?>
<?php
require 'config.php';
?>
<link rel="stylesheet" href="style.css" />
<link rel="stylesheet" href="css/theme-inner.css" />
</head>
<body>
<?php
require 'nav.php';
?>
<div align="center">
<h1>Contact Detail</h1>
</div>
<section class="full-width-inner">
<div class="container">
<div class="row" style="margin: 0 auto;">
<div class="col-lg-12 col-md-12" style="margin: 0 auto;">
<h2 class="article-title">Profile</h2>
<div class="row">
<?php require 'leftNav.php';?>
<?php
if (isset ( $_GET ['id'] )) {
$search = trim ( $_GET ['id'] );
$result = mysqli_query ( $conn, "select * from member where member_id like '%" . $search . "%' Limit 1" );
$rows = mysqli_num_rows ( $result );
if ($rows) {
while ( $post = mysqli_fetch_assoc ( $result ) ) {
?>
<div class="col-sm-8 col-md-9 col-lg-9">
<div class="panel panel-info light-pink">
<div class="panel-heading action-box">
<div class="panel-caption">
<h3 class="panel-title"><?php print($post['member_name']); ?></h3>
</div>
<!-- panel-caption -->
<div class="panel-tools">
<a href="view_profiles_others.php?id=<?php echo $search ?>"
class="btn btn-white-outline btn-xsmall">View Member Profile</a>
</div>
<!-- panel-tools -->
<div class="panel-tools">
<a href="view_contact.php?id=<?php echo $search ?>"
class="btn btn-white-outline btn-xsmall">View Contact Deatil</a>
</div>
<!-- panel-tools -->
</div>
<!-- panel panel-info light-pink -->
<div class="panel-body">
<div class="row">
<div class="col-md-4 col-lg-3">
<a href="view_contact.php?id=<?php echo $search;?>"><img
alt="Image Not Available"
src="<?php echo $post['upload_image_path'];?>"
class="thumbnail" /></a>
</div>
<!-- col-md-4 col-lg-3 -->
<div class="col-md-8 ">
<div class="profile-sumup">
<div class="row">
<table class="table table-condensed table-user-information">
<tbody>
<tr>
<td class="col-xs-4 col-sm-4">Name</td>
<td><span>:</span> <?php echo $post['member_name'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Date Of Birth</td>
<td><span>:</span> <?php echo $post['day'];?>/<?php echo $post['month'];?>/<?php echo $post['year'];?></td>
</tr>
<?php
$year = $userRow ['year'];
$y = date ( "Y" );
$age = $y - $year;
?>
<tr>
<td class="col-xs-4 col-sm-4">Age</td>
<td><span>:</span> <?php echo $age;?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Email</td>
<td><span>:</span> <?php echo $post['email'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Country</td>
<td><span>:</span> <?php echo $post['country'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Residing State</td>
<td><span>:</span> <?php echo $post['residing_state'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">City</td>
<td><span>:</span> <?php echo $post['city'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Contact Address</td>
<td><span>:</span> <?php echo $post['contact_address'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Primary Mobile Number</td>
<td><span>:</span> <?php echo $post['primary_mobile_number'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Alternate Mobile Number</td>
<td><span>:</span> <?php echo $post['alternate_mobile_number'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Citizenship</td>
<td><span>:</span> <?php echo $post['citizenship'];?></td>
</tr>
<tr>
<td class="col-xs-4 col-sm-4">Residing Status</td>
<td><span>:</span> <?php echo $post['residing_status'];?> </td>
</tr>
</tbody>
</table>
<!-- table -->
</div>
<!-- /row -->
</div>
<!-- profile-sumup -->
</div>
<!-- col-md-8 -->
</div>
<!-- row -->
</div>
<!-- panel-body -->
</div>
<!-- col-sm-8 col-md-9 col-lg-9 -->
<?php
}
} else {
?>
<div class="col-sm-8 col-md-9 col-lg-9">
<div class="panel panel-info light-pink">
<div class="panel-heading action-box">
<div class="panel-caption">
<h3 class="panel-title"><?php echo "No Record Found In The Database!"?></h3>
</div>
<!-- panel-caption -->
</div>
<!-- panel-heading action-box -->
</div>
<!-- panel panel-info light-pink -->
</div>
<!-- col-sm-8 col-md-9 col-lg-9 -->
<?php
}
}
?>
</div>
<!-- row -->
</div>
<!-- col-lg-12 col-md-12 -->
</div>
<!-- row -->
</div>
<!-- container -->
</section>
<!-- full-width-inner -->
</body>
</html>