我有一个网站,任何访问者可以订阅接收newsletter.I遇到了每当我刷新页面时,我已经重新提交的问题。我通过应用PRG概念解决了它。现在用户永远不会提交相同的表单两次,我只有一个问题:我已经设计了表单,以便当成功/失败时在输入字段下显示一条消息。不幸的是,现在我应用了PRG概念,我从未收到任何消息。该怎么办 ?POST/REDIRECT/GET出了什么问题?
的index.php - 其中i具有包含提交表单和所述消息显示的div
<div id="newsletter" >
<form id="abonat" name="abonat" action="formular.php" method="post" onsubmit="return golire()" autocomplete="on" >
<span>Subscribe</span>
<input type="text" id="nume" name="nume" placeholder="Name" required />
<input type="email" id="email" name="email" placeholder="Email" autocomplete="off" required/>
<input type="submit" value="Subscribe" class="button" style="width:26%;float:left;" />
</form>
</div>
<div id="mesaj_newsletter">
<span><?php if (isset($mesaj)) echo $mesaj; ?> </span>
</div>
formular.php - 其中所述验证发生,并且该消息被决定
include('conect.php');
function validEmail($email){
//code that verifies if it is a valid email adress
}
if((isset($_POST['email']))&&(isset($_POST['nume']))){
$nume=mysql_real_escape_string($_POST['nume']);
$email=mysql_real_escape_string($_POST['email']);
$z=1;
if(validEmail($email)==TRUE){
$result=mysql_query("SELECT * FROM abonat");
while($data=mysql_fetch_row($result)){
if(($data[1]==$email)||($data[2]==$nume))
$z=0;
}
if($z==1){
mysql_query("INSERT INTO abonat(email,nume) VALUES ('$email','$nume')");
$mesaj="Your email has been registered";
}
else $mesaj="You are already registered";
}
else $mesaj="You have not entered a valid email adress";
}
mysql_close($con);
header('Location:index.php');
?>
你有没有听说过$ _SESSION? – 2013-04-29 10:27:11