我有一个查询，我在其中检查用户是否已经存储在数据库中，但是问题是它可以在MYSQL上完美运行，但在需要它的PostgreSQL上却无法运行。我该怎么办？步骤是：用户注册帐户。如果它已经存在于数据库中，它将返回一条消息；如果不存在，则向他发送一封电子邮件以确认注册。确认无效（用户可以输入并激活其帐户的地址）。 这是确认代码（email_verification.php）：
<?php
ob_start();
$success = false;
// Errors reporting, used if needed
error_reporting(E_ALL);
ini_set('display_errors', 'on');
// General configuration like base, used if needed
include_once ('include/config.inc.php');
// Mail functions
include_once ('include/mail.functions.php');
// Start session if needed
session_start();
// DBConn
include_once ('class/DB/DBConn.includeall.php');
$db = new DBConn(NULL);
// Includere clasa login
require_once ('class/class_login.php');
// Set up current language
$lang = "ro";
$_SESSION[PRE.'lang'] = $lang;
$message = '';
if(isset($_GET['cod_activare']))
{
$query = "
SELECT * FROM tregister
WHERE cod_activare = :cod_activare
";
$statement = $connect->prepare($query);
$statement->execute(
array(
':cod_activare' => $_GET['cod_activare']
)
);
$no_of_row = $statement->rowCount();
if($no_of_row > 0)
{
$result = $statement->fetchAll();
foreach($result as $row)
{
if($row['email_status'] == '0')
{
$update_query = "
UPDATE tregister
SET email_status = '1'
WHERE id = '".$row['id']."'
";
$statement = $connect->prepare($update_query);
$statement->execute();
$sub_result = $statement->fetchAll();
if(isset($sub_result))
{
$message = '<label class="text-success">Email verificat cu success! <br />Poti efectua checkin-ul aici - <a href="login.php">Efectueaza check-in</a></label>';
}
}
else
{
$message = '<label class="text-info">Adresa de mail deja verificata</label>';
}
}
}
else
{
$message = '<label class="text-danger">Link invalid</label>';
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Hotel Amethyst</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/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/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<h3><?php echo $message; ?></h3>
</div>
</body>
</html>
<?php
ob_end_flush();
?>
这是register.php：
<?php
ob_start();
$success = false;
// Errors reporting, used if needed
error_reporting(E_ALL);
ini_set('display_errors', 'on');
// General configuration like base, used if needed
include_once ('include/config.inc.php');
// Mail functions
include_once ('include/mail.functions.php');
// Start session if needed
session_start();
// DBConn
include_once ('class/DB/DBConn.includeall.php');
$db = new DBConn(NULL);
// Includere clasa login
require_once ('class/class_login.php');
// Set up current language
$lang = "ro";
$_SESSION[PRE.'lang'] = $lang;
$access = 0;
// Check if the cookie for "remember me" exists
if(isset($cookie_name))
{
if(isset($_COOKIE[$cookie_name]))
{
parse_str($_COOKIE[$cookie_name]);
$login = new Login($db);
if ($login->_checkLogin($usr, $hash) == true)
{
$access = 1;
}
}
}
$user = (isset($_POST['user']) && !empty($_POST['user'])) ? $_POST['user'] : "" ;
$email = (isset($_POST['email']) && !empty($_POST['email'])) ? $_POST['email'] : "" ;
$cod_activare = md5(rand());
$email_status=0;
$db = pg_connect("host=local port=5432 dbname=login_robinson user=robinson password=123");
$query = "INSERT INTO tregister(nume,email,cod_activare,email_status) VALUES ('$user','$email','$cod_activare','$email_status')";
$result = pg_query($query);
if(isset($_POST['submit'])){
$base_url = "http://local/login-robinson/www/";
$mail_body = "
Buna ziua ".$_POST['user'].",\n
Multumim pentru inregistrare. Te rog deschide acest link pentru a incepe procesul de check-in - ".$base_url."email_verification.php?activation_code=".$cod_activare."
Cu stima,\nHotel Amethyst
";
$from = 'Activare rezervare';
$subject = 'De pe site';
if (mail ($email, $subject, $mail_body, $from)){
echo "<script>
alert('Utilizator inregistrat cu success! Te rog verifica adresa de mail!');
window.location.href='login.php';
</script>";
}
else{
echo "<script>
alert('S-a produs o eroare! Te rog mai verifica odata formularul!');
</script>";
}
if($user !=''&& $email !='')
{
$success=true;
}
}
?>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<!-- <base href="http://dev.incorom.local/ticketing/www/login.php" /> -->
<title>Inregistrare</title>
<?php
include('include/links.php');
include('include/scripts.php');
?>
</head>
<body style="display: block !important;" ng-cloak="" ng-class="{ 'layout-fixed' : app.layout.isFixed, 'layout-boxed' : app.layout.isBoxed, 'layout-dock' : app.layout.isDocked, 'layout-material': app.layout.isMaterial, 'aside-offscreen' : app.sidebar.isOffscreen, 'aside-mini' : app.sidebar.isMini, 'aside-right' : app.sidebar.isRight, 'footer-hidden': app.footer.hidden, 'in-app': !$state.includes('page')}">
<div class="animated fadeOutZoom">
<div class="container container-sm animated fadeInDown">
<div class="center-block mt-xl">
<img src="images/logo_iconlab.png" alt="Image" class="center-block img-rounded">
<div class="panel">
<div class="panel-body">
<p class="pv text-bold">Date de inregistrare rezervare</p>
<form class="mb-lg" method="post" action="register.php" id="form">
<div class="row">
<div class="col-md-12">
<div class="form-group has-feedback mb">
<input type="text" placeholder="Nume" autocomplete="off" class="form-control" name="user" id="user" required /><span class="fa fa-envelope form-control-feedback text-muted"/></span>
</div><br>
<div class="form-group has-feedback mb">
<input type="email" placeholder="Adresa de mail" autocomplete="off" class="form-control" name="email" id="email" required /><span class="fa fa-envelope form-control-feedback text-muted"/></span>
</div><br>
</div>
<div class="col-md-12">
<button type="submit" class="btn btn-block btn-info btnblue mb" name="submit">Inregistrare</button>
</div>
</div>
<div id="main_area" class="row-fluid">
</form>
</div>
</div>
</div>
</div>
</body>
</html>
<?php
ob_end_flush();
?>
注册工作正常，但是我可以无限次地注册同一封电子邮件。