我已尝试过所有方法,但仍未按预期重定向到 index.php 。 我还添加了 ob_start(),但它不起作用。然后我尝试了标题('location:...')。它也没用。然后我尝试使用JavaScript重定向,但也没有用。 有什么建议??
<html>
<head>
<link rel ="stylesheet" href=css/style.css>
</head>
<body>
<?php
ob_start();
require('dbconnect.php');
require('loginservice.php');
session_start();
//if my form is submitted
if(isset($_POST['submit']))
{
$username=$_POST['username'];
$password=$_POST['password'];
$query1= userIdentity($username,$password);
echo 'returning value deisplay';
echo '\n' .$query1 . '\n';
echo 'i am here';
if($query1==1){
//echo 'welcome dude';
$_SESSION['username'] = $username;
// Redirect user to index.php
//echo "<script type='text/javascript'> window.location='index.php'; </script>";
// header("Location: index.php");
//e//cho 'heeeelo';
echo "<script type='text/javascript'>window.location.href = 'index.php'; </script>";
ob_flush();
exit(0);
}
// header("Location: index.php");
else
{
echo " <div class='form'>
<h3>Username/password is incorrent.</h3>
<br/>click here to <a href='login.php'>Login</a></div>";
}
//header("Location: index.php");
}
else {
?>
<div class="form">
<h1>Log In</h1>
<form action="" method='post' name="login">
<input type ="text" name="username" placeholder="username" required />
<input type="password" name="password" placeholder="password" required />
<input name="submit" type="submit" value="login" />
</form>
<p> Not registered yet ? <a href='register.php'>Register Here </a> </p>
</div>
<?php
}
?>
</body>
</html>
答案 0 :(得分:1)
而不是在PHP代码之前使用html df <- data.frame(Type = c("a", "b", "c", "d", "e", "f","g","h","i"),
Value1 = c(1, 32, 63, 94, 125, 156,187,218,249),
Value2 = c(125, 5, 125, 76, 3, 125,3,2,100),
Total = c(126,37,188,170,128,281,190,220,349))
plot <- ggplot(df,aes(x = Type,y=c("Value1","Value2","Total"),fill = EVTYPE))+geom_bar(position="dodge")
标签,在这些之前使用php代码并使用标头功能。这是工作新版本:
<html><head><body>
答案 1 :(得分:1)
根据header()的PHP手册页:
请记住,在发送任何实际输出之前,必须通过普通HTML标记,文件中的空行或PHP来调用header()。
所以将PHP代码移到起始HTML标记之上,如下例所示。我创建了一个变量来保存消息,以防登录尝试失败(即$message
)。请注意最初如何将其设置为空白消息(好scope),然后在适当时设置。然后将它添加到下面的表格中。
您可以在this phpFiddle中看到这一点。尝试使用任何用户名登录。如果您输入密码 pw ,那么您应该被带到 index.php ,在该页面上显示带有文本 phpfiddle.org 。此外,我从else
块中删除了HTML,因此它将始终显示表单(并在设置时插入登录失败消息),尽管您可能希望在登录时不再显示该表单失败...
<?php
ob_start();
require('dbconnect.php');
require('loginservice.php');
session_start();
$message = ''; //initialize to empty, for good scope
//if my form is submitted
if(isset($_POST['submit']))
{
$username=$_POST['username'];
$password=$_POST['password'];
$query1= userIdentity($username,$password);
if($query1==1){
$_SESSION['username'] = $username;
// Redirect user to index.php</script>";
header("Location: index.php");
//...
}//else:
else {
$message = "<div class='form'><h3>Username/password is incorrect.</h3>
<br />click here to <a href='login.php'>Login</a></div>";
}
?>
<html>
<head>
<!-- the rest of the HTML content -->
并且在正文中,如果定义了错误消息,则附加该消息,例如:
<div class="form"><?php echo $message; ?>
<h1>Log In</h1><!-- rest of the HTML for the form-->