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我正在尝试创建一个循环，在满足条件时重定向到另一个脚本。但此刻，它满足条件，结束循环，但不重定向到脚本。我没有做过任何工作...

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);
define('INCLUDE_CHECK',true);
require '../config/connection.php';
session_name('ppRemember');
session_set_cookie_params(86400);
session_start();
//get value from database. if is pending then display loading else display summary. if is complete but no session set say session has expired
if (isset($_SESSION['txnId'])) {
if ($_SESSION['txnId']==true) {
    header('Location: ../confirmation');
    die();
}
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body> 
<div id="basket-empty" title="Success" style="display:none;">
<p>Basket emptied</p>
</div>
<div id="confirm-empty" title="Confirm" style="display:none;">
<p>Are you sure you want to empty your basket?</p>
</div>
<div id="page-wrapper">
    <div id="page">
        <div id="header" class="without-secondary-menu">
                <div class="section clearfix">
                    <div id="logo-caption">
                        <a href="/" title="Home" rel="home" id="logo">
                        </a>
                    </div>
                    <div id="caption">
                    </div>
                    <div id="main-menu" class="navigation">
                        <ul id="main-menu-links" class="links clearfix">
                            <li class="menu-2 active-trail active"><a href="../index"> Order Online </a></li>
                            <li class="menu-9"><a href="../my-account"> My Account </a></li>
                            <?php if (!$_SESSION['id']) {?>
                            <li class="menu-10"><a href="../login"> Sign In </a></li>
                            <?php } ?>
                            <li class="menu-5"><a href="../getaquote"> Get a Quote </a></li>
                            <li class="menu-6"><a href="../contactus"> Contact Us </a></li>
                            <li class="menu-11"><a href="../news"> News </a></li>
                            <li class="menu-8"><a href="../uploads"> Uploads </a></li>
                            <li class="menu-7"><a href="../downloads"> Downloads </a></li>
                        </ul>           
                    </div>
                </div>
            </div>
            <?php if (isset($_SESSION['id'])) { ?>
                <div id="panel" class="clearfix">
                    <div id="account-links">
                        <ul class="username">
                            <li><span class="account-links"><a href="../my-account">You are logged in as <b><?php echo $_SESSION['username']; ?></b></a></span>
                            <span class="logout"><a href="../destroy">Logout</a></span></li>
                        </ul>   
                    </div>
                </div>
            <?php } ?>  
        <div id="main-wrapper" class="clearfix">
            <div id="main" class="clearfix">
                <div class="content">
                    <a id="main-content"></a>
                    <div class="tabs">
                    </div>
                    <div class="region region-content">
                        <div id="block-system-main" class="block block-system">
                            <div class="content">
                                <div id="node-1" class="clearfix">
                                    <div class="content clearfix">
                                        <?php if (!isset($_SESSION['txnId'])) {
                                        if (isset($_SESSION['cart'])) { ?>
                                        <div class="loading2" style="height:300px;">
                                            <span class="text2"><font size="6pt"><b>Loading....</b></font></span>
                                            <img src="../images/ajax-loader2.gif"/><br />
                                            <font size="3pt"><b>Please wait a moment whilst we process your payment</b></font><br />
                                            <font size="1pt"><b>Click <a href="/order/complete">here</a> to reload after 10 seconds</b></font>
                                        </div>
                                        <?php }
                                        } ?>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div id="footer-wrapper">
                <div class="section">
                    <div id="footer" class="clearfix">
                        <div class="region region-footer">
                            <div class="block">
                                <div class="content">
                                    <div class="column1">
                                    </div>
                                    <div class="column2">
                                                                                </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html> 
<?php
$trans = $_SESSION['transaction_id'];
$clientId = $_SESSION['id'];
if (!isset($_SESSION['txnId'])){
    while ($_SESSION['txnId']!=true) {
        $mysqli = new mysqli("localhost", "#####", "#####", "######");
        $stmt = $mysqli->prepare("SELECT `txn_id` FROM `trans` AS t, `order_table` AS ot, `customer_order_details` AS cod WHERE t.transaction_id=?
         && t.transaction_id = ot.transaction_id && ot.customer_order_details_id = cod.customer_order_details_id && cod.client_id=?");
        $stmt->bind_param('ii',$trans,$clientId);
        if ($stmt->execute()) {
            $stmt->store_result(); 
            $num_rows = $stmt->num_rows;
            if ($num_rows>=1) {
                $stmt->bind_result($txnidrow);
                $stmt->fetch();
                $stmt->free_result();
                $stmt->close();
                $_SESSION['CARRYTXNID'] = $txnidrow;    
                $_SESSION['txnId'] = true;
            }
        }
    } 
}
header('Location: ../confirmation');
die();
}

?>

非常感谢任何进展。我尝试了一个 do while 循环，没有死亡/退出的标题。我已经删除了所有代码并自行重定向了页面，运行了脚本，一切都很好。等等，等等。我附和了一些东西以确保最终满足条件。

4

4 回答 4

2

在您进行编辑之后，这里的解决方案实际上非常简单 - 您只需将重定向代码移动到页面顶部即可：

<?php

  define('INCLUDE_CHECK',true);
  require '../config/connection.php';

  session_name('ppRemember');
  session_set_cookie_params(86400);
  session_start();

  $trans = $_SESSION['transaction_id'];
  $clientId = $_SESSION['id'];

  //get value from database. if is pending then display loading else display summary. if is complete but no session set say session has expired
  if (isset($_SESSION['txnId'])) {
    if ($_SESSION['txnId']==true) {
      header('Location: ../confirmation');
      die();
    }
  } else {
    while (!$_SESSION['txnId']) {
      $mysqli = new mysqli("localhost", "#####", "#####", "######");
      $stmt = $mysqli->prepare("
        SELECT `txn_id`
        FROM `trans` AS t, `order_table` AS ot, `customer_order_details` AS cod
        WHERE t.transaction_id = ?
           && t.transaction_id = ot.transaction_id
           && ot.customer_order_details_id = cod.customer_order_details_id
           && cod.client_id = ?
      ");
      $stmt->bind_param('ii', $trans, $clientId);
      if ($stmt->execute()) {
        $stmt->store_result(); 
        $num_rows = $stmt->num_rows;
        if ($num_rows>=1) {
          $stmt->bind_result($txnidrow);
          $stmt->fetch();
          $stmt->free_result();
          $stmt->close();
          $_SESSION['CARRYTXNID'] = $txnidrow;    
          $_SESSION['txnId'] = true;
        }
      }
    } 
  }
  header('Location: ../confirmation');
  die();
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body> 
<div id="basket-empty" title="Success" style="display:none;">
<p>Basket emptied</p>
</div>
<div id="confirm-empty" title="Confirm" style="display:none;">
<p>Are you sure you want to empty your basket?</p>
</div>
<div id="page-wrapper">
    <div id="page">
        <div id="header" class="without-secondary-menu">
                <div class="section clearfix">
                    <div id="logo-caption">
                        <a href="/" title="Home" rel="home" id="logo">
                        </a>
                    </div>
                    <div id="caption">
                    </div>
                    <div id="main-menu" class="navigation">
                        <ul id="main-menu-links" class="links clearfix">
                            <li class="menu-2 active-trail active"><a href="../index"> Order Online </a></li>
                            <li class="menu-9"><a href="../my-account"> My Account </a></li>
                            <?php if (!$_SESSION['id']) {?>
                            <li class="menu-10"><a href="../login"> Sign In </a></li>
                            <?php } ?>
                            <li class="menu-5"><a href="../getaquote"> Get a Quote </a></li>
                            <li class="menu-6"><a href="../contactus"> Contact Us </a></li>
                            <li class="menu-11"><a href="../news"> News </a></li>
                            <li class="menu-8"><a href="../uploads"> Uploads </a></li>
                            <li class="menu-7"><a href="../downloads"> Downloads </a></li>
                        </ul>           
                    </div>
                </div>
            </div>
            <?php if (isset($_SESSION['id'])) { ?>
                <div id="panel" class="clearfix">
                    <div id="account-links">
                        <ul class="username">
                            <li><span class="account-links"><a href="../my-account">You are logged in as <b><?php echo $_SESSION['username']; ?></b></a></span>
                            <span class="logout"><a href="../destroy">Logout</a></span></li>
                        </ul>   
                    </div>
                </div>
            <?php } ?>  
        <div id="main-wrapper" class="clearfix">
            <div id="main" class="clearfix">
                <div class="content">
                    <a id="main-content"></a>
                    <div class="tabs">
                    </div>
                    <div class="region region-content">
                        <div id="block-system-main" class="block block-system">
                            <div class="content">
                                <div id="node-1" class="clearfix">
                                    <div class="content clearfix">
                                        <?php if (!isset($_SESSION['txnId'])) {
                                        if (isset($_SESSION['cart'])) { ?>
                                        <div class="loading2" style="height:300px;">
                                            <span class="text2"><font size="6pt"><b>Loading....</b></font></span>
                                            <img src="../images/ajax-loader2.gif"/><br />
                                            <font size="3pt"><b>Please wait a moment whilst we process your payment</b></font><br />
                                            <font size="1pt"><b>Click <a href="/order/complete">here</a> to reload after 10 seconds</b></font>
                                        </div>
                                        <?php }
                                        } ?>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div id="footer-wrapper">
                <div class="section">
                    <div id="footer" class="clearfix">
                        <div class="region region-footer">
                            <div class="block">
                                <div class="content">
                                    <div class="column1">
                                    </div>
                                    <div class="column2">
                                                                                </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>
于 2012-07-18T12:38:20.620 回答
1 
$bool = false;
while (!$bool) {
   //do you stuff
   // when condition is met then $bool = true;
   // and double check
   if ($bool)
       break; //or header ('location'...);
}
// or here header location

如果我理解正确，这应该会有所帮助。

于 2012-07-18T12:00:06.540 回答
1

试试这样：

<?php
ini_set('error_reporting', E_ALL);
define('INCLUDE_CHECK',true);
require '../config/connection.php';
session_name('ppRemember');
session_set_cookie_params(86400);
session_start();

$trans = $_SESSION['transaction_id'];
$clientId = $_SESSION['id'];
if (!isset($_SESSION['txnId'])){
    while ($_SESSION['txnId']!=true) {
        $mysqli = new mysqli("localhost", "#####", "#####", "######");
        $stmt = $mysqli->prepare("SELECT `txn_id` FROM `trans` AS t, `order_table` AS ot, `customer_order_details` AS cod WHERE t.transaction_id=?
         && t.transaction_id = ot.transaction_id && ot.customer_order_details_id = cod.customer_order_details_id && cod.client_id=?");
        $stmt->bind_param('ii',$trans,$clientId);
        if ($stmt->execute()) {
            $stmt->store_result(); 
            $num_rows = $stmt->num_rows;
            if ($num_rows>=1) {
                $stmt->bind_result($txnidrow);
                $stmt->fetch();
                $stmt->free_result();
                $stmt->close();
                $_SESSION['CARRYTXNID'] = $txnidrow;    
                $_SESSION['txnId'] = true;

                header('Location: http://my-site.com/confirmation/');
                die();

            }
        }
    } 
}
}
?>
于 2012-07-18T12:02:51.357 回答
1

问题不在于 PHP，而是您在输出页面标题后尝试发出重定向标题。您的 while 循环是在您的整个页面被写入之后。您可以通过在您的 php.ini 中打开输出缓冲来解决此问题，或者只需将您的 while 循环放在任何内容之前。

于 2012-07-18T12:39:27.550 回答