Question

在我们正确提交表单之后，我正在尝试将人们重定向到PDF，在我这样做之前，我会对表单字段进行一些检查以使它们已经正确填写，现在我正在尝试使用header（）做我的重定向，但是因为我在收到错误之前已经多次回应。以下是我的代码，我该怎么办？

<?php
    if(isset($_POST['submit'])) {
        if($valid_fname == "Y") {
            if($valid_sname == "Y") {
                if($valid_company == "Y") {
                    if($valid_email == "Y") {                   
                    }
                    else {
                        echo "<p class=\"secText\">Please enter a valid email address</p>\n";
                    }
                }
                else{
                    echo "<p class=\"secText\">Please enter the company you work for</p>\n";
                }
            }
            else {
                echo "<p class=\"secText\">Please enter your surname</p>\n";
            }
        }
        else {
            echo "<p class=\"secText\">Please enter your first name</p>\n";
        }
        if(($valid_fname == "Y")&&($valid_sname == "Y")&&($valid_company == "Y")&&($valid_email == "Y")) {
            echo "<p class=\"secText\">Thank you for confirming your details, you will be re-directed to \"The Personal Touch\" Whitepaper shortly.</p>\n";         
            header('Location:  http://www.sefasinnovation.co.uk/personal_touch.pdf');
            exit();
        }
    }
?>

编辑好的，我最终使用了一些javascript

    if(($valid_fname == "Y")&&($valid_sname == "Y")&&($valid_company == "Y")&&($valid_email == "Y")) {
        echo "<p class=\"secText\">Thank you for confirming your details, you will be re-directed to \"The Personal Touch\" Whitepaper shortly.</p>\n";
        echo "<script type=\"text/javascript\">\n";
        echo    "   <!--\n";
        echo    "       setTimeout(\"window.location = 'http://www.sefasinnovation.co.uk/personal_touch.pdf';\",5000);\n";
        echo    "//-->\n";
        echo    "</script>\n";
    }

Answer 1

尝试建立一个链接，将用户重定向到pdf页面，以便该链接包含pdf页面网址

<a href="http://www.sefasinnovation.co.uk/personal_touch.pdf">Thank you for confirming your details </a>

或者您可以使用元标记在2秒后重定向用户

<meta http-equiv="refresh" content="2; url=http://www.sefasinnovation.co.uk/personal_touch.pdf" />

Answer 2

您可以使用output buffering仅在发送标题后发送内容。

if(($valid_fname == "Y")&&($valid_sname == "Y")&&($valid_company == "Y")&&($valid_email == "Y")) {
    ob_start();
    echo "<p class=\"secText\">Thank you for confirming your details, you will be re-directed to \"The Personal Touch\" Whitepaper shortly.</p>\n";         
    header('Location:  http://www.sefasinnovation.co.uk/personal_touch.pdf');
    ob_end_flush();
    exit();
}

然而，由于在重定向完成之前几乎没有时间显示消息，这种方法将毫无用处。

这里最好的方法可能是将您的网页重定向到一个小的HTML页面，该页面会在经过一段时间后触发JavaScript重定向。这是一般的想法。你应该对细节进行排序。

<强> PHP

if(($valid_fname == "Y")&&($valid_sname == "Y")&&($valid_company == "Y")&&($valid_email == "Y")) {
    header('Location:  http://www.sefasinnovation.co.uk/notification.html');
    exit();

    // You could also avoid redirection to an HTML file and output the code directly
    echo <<<HTML
    <html>
        <head>
        <title>Enter desired title</title>
        <script type="text/javascript">
            setTimeout(function(){
                window.location = "http://www.sefasinnovation.co.uk/personal_touch.pdf";
            }, 5000);
        </script>
        </head>
        <body>
            <p class="secText">Thank you for confirming your details, you will be re-directed to "The Personal Touch" Whitepaper shortly.</p>
            <p>If this page isn't redirected in 5 seconds please click <a href="http://www.sefasinnovation.co.uk/personal_touch.pdf">here</a>.</p>
        </body>
    </html>
HTML;
}

notification.html （上面的PHP代码也可以吐出此代码，但前提是页面上没有输出）

<html>
    <head>
    <title>Enter desired title</title>
    <script type="text/javascript">
        setTimeout(function(){
            window.location = "http://www.sefasinnovation.co.uk/personal_touch.pdf";
        }, 5000);
    </script>
    </head>
    <body>
        <p class="secText">Thank you for confirming your details, you will be re-directed to "The Personal Touch" Whitepaper shortly.</p>
        <p>If this page isn't redirected in 5 seconds please click <a href="http://www.sefasinnovation.co.uk/personal_touch.pdf">here</a>.</p>
    </body>
</html>

notification.html中的附加链接应允许用户在禁用JavaScript时进行手动重定向。

Answer 3

你的问题在这里：

 if(($valid_fname == "Y")&&($valid_sname == "Y")&&($valid_company == "Y")&&($valid_email == "Y")) {
            echo "<p class=\"secText\">Thank you for confirming your details, you will be re-directed to \"The Personal Touch\" Whitepaper shortly.</p>\n";         
            header('Location:  http://www.sefasinnovation.co.uk/personal_touch.pdf');
            exit();
        }

如果要发送重定向标头，则无法向页面输出任何内容。删除echo语句并再次尝试该页面。

或者，您可以编写带有重定向<meta>标记的HTML页面（您可以将其延迟5秒钟然后重定向。您的消息将起作用）。

在Google上查找教程。

表单提交后PHP重定向

3 个答案: