Question

我正在慢慢掌握PHP，但是在分解我的if语句方面很困难，所以我的标题功能正常工作。我做了一些，但他们没有涉及我的密码恢复文件那么多的条件。有人可以告诉我如何做到这一点吗？

<?php
include ("storescripts/init.php");
logged_in_redirect();
include ("includes/overall/head.php");?>
<?php include ("includes/overall/template_header.php");?>
<div id="mainDivShort">
<h1>Recover</h1>
<div id="divBreak"></div>
<?php include ("includes/overall/column_left.php");?>
<div id="middleContent">
    <?php 
    if(isset($_GET['success']) === true && empty($_GET['success']) === true){
        ?>
    <p>Thanks, we've emailed you.</p>
    <?php
        } else {
            $mode_allowed = array('mem_password');
            if (isset($_GET['mode']) === true && in_array($_GET['mode'],  $mode_allowed) === true) {
            if(isset($_POST['mem_email']) === true && empty($_POST['mem_email']) === false) {
                if (email_exists($_POST['mem_email']) === true) {
                    recover($_GET['mode'], $_POST['mem_email']);
                    header('Location: recover.php?success');
                    exit();
                } else {
                    echo '<p>Oops, we couldn\'t find that email in the system</p>';
                }
            }
            ?>
    <form action="" method="post">
        <ul>
            <li>Please enter your email address:<br> <input type="text"
                name="mem_email">
            </li>
            <li><input type="submit" value="Recover"></li>
        </ul>
    </form>
    <?php
        } else {
            header('Location: index.php');
            exit();
        }
        }
        ?>
</div>
<?php include ("includes/overall/column_right.php");?>
</div>
<?php include ("includes/overall/template_footer.php");?>

标题语句需要高于我的包含head.php，因为这包括HTML输出。我尝试过缓冲，但这对我不起作用！谢谢！

Answer 1

<?php
$msg = "";    
if (!empty($_GET)) //check if form has been submitted
{  
   if(isset($_GET['success']) === true && empty($_GET['success']) === true)
   {
      $msg = "Thanks, we've emailed you.";
   } 
   else 
   {
      $mode_allowed = array('mem_password');
      if (isset($_GET['mode']) === true && in_array($_GET['mode'],  $mode_allowed) === true) 
      {
         if(isset($_POST['mem_email']) === true && empty($_POST['mem_email']) === false) 
         {
            if (email_exists($_POST['mem_email']) === true) 
            {
              recover($_GET['mode'], $_POST['mem_email']);
              header('Location: recover.php?success');
              exit();
            } 
            else 
            {
              $msg = "<p>Oops, we couldn\'t find that email in the system</p>";
            }
         }
      } 
      else 
      {
         header('Location: index.php');
         exit();
      }
   }
}

include 'storescripts/init.php';
logged_in_redirect();
include 'includes/overall/head.php';
include 'includes/overall/template_header.php';
 ?>
<div id="mainDivShort">
<h1>Recover</h1>
<div id="divBreak"></div>
<?php include ("includes/overall/column_left.php");?>
<div id="middleContent">
<?php echo $msg; ?>
<form action="" method="post">
    <ul>
        <li>Please enter your email address:<br> <input type="text"
            name="mem_email">
        </li>
        <li><input type="submit" value="Recover"></li>
    </ul>
</form>
</div>
<?php include ("includes/overall/column_right.php");?>
</div>
<?php include ("includes/overall/template_footer.php");?>

你有没有在这里解决这个问题？ Rearranging PHP page so header is before HTML

Answer 2

<?php
ob_start(); // We start the buffer
include ("storescripts/init.php");
logged_in_redirect();
include ("includes/overall/head.php");?>
<?php include ("includes/overall/template_header.php");?>
<div id="mainDivShort">
<h1>Recover</h1>
<div id="divBreak"></div>
<?php include ("includes/overall/column_left.php");?>
<div id="middleContent">
    <?php 
    if(isset($_GET['success']) === true && empty($_GET['success']) === true){
        ?>
    <p>Thanks, we've emailed you.</p>
    <?php
        } else {
            $mode_allowed = array('mem_password');
            if (isset($_GET['mode']) === true && in_array($_GET['mode'],  $mode_allowed) === true) {
            if(isset($_POST['mem_email']) === true && empty($_POST['mem_email']) === false) {
                if (email_exists($_POST['mem_email']) === true) {
                    ob_clean(); // Clean the buffer and make the redirect
                    recover($_GET['mode'], $_POST['mem_email']);
                    header('Location: recover.php?success');
                    exit();
                } else {
                    echo '<p>Oops, we couldn\'t find that email in the system</p>';
                }
            }
            ?>
    <form action="" method="post">
        <ul>
            <li>Please enter your email address:<br> <input type="text"
                name="mem_email">
            </li>
            <li><input type="submit" value="Recover"></li>
        </ul>
    </form>
    <?php
        } else {
            ob_clean();// Clean the buffer and make the redirect
            header('Location: index.php');
            exit();
        }
        }
        ?>
</div>
<?php include ("includes/overall/column_right.php");?>
</div>
<?php include ("includes/overall/template_footer.php");?>

Answer 3

你可能不知道的是，只要第一个字符被回显，php就会发送一个标题......第一个字符甚至可以是像lf或tab或cr这样的空格。等

一旦第一个标题消失，您计划发送的其他标题将不再计算...因此，混合使用文本html和使用标记可能会对您造成伤害。因为php标记之外的第一个空白区域将生成标题，并且您计划的标题将不再计算。

我可以更进一步，建议您开始使用模板系统将代码与内容分开。

重新排列我的密码恢复文件，使HTML输出低于标题

3 个答案: