Question

php 写的html script标签内的alert没反应

代码：
<?php
require_once ('include.php');
$email=$_POST['email'];
$password=md5($_POST['password']);
$verify=$_POST['verify'];
$imgVerify=$_SESSION['verify'];
if ($verify==$imgVerify) {
$sql="select * from tuuup_user where email='{$email}' and password='{$password}'";
$res=checkUser($sql);
print_r($res);
}else{
echo "<script>alert('验证码错误');<script>";
echo "<script>window.location='Signin.php';<script>";
}
?>

我故意输错验证码，逻辑上来说应该是警告然后跳转，实际上直接白页了，求大神指点。谢谢

Answer 1

require_once ('include.php');
$email=$_POST['email'];
$password=md5($_POST['password']);
$verify=$_POST['verify'];
$imgVerify=$_SESSION['verify'];
if ($verify==$imgVerify) {
	$sql="select * from tuuup_user where email='{$email}' and password='{$password}'";
	$res=checkUser($sql);
	print_r($res);
}else{
	echo "<script>alert('验证码错误');</script>";  //错误在这里,没有结束标签
	echo "<script>window.location='Signin.php';</script>";　//这里也没有结束标签
}