PHP include() 在 doctype 之前，导致空格

发布于 2025-01-02 09:49:54 字数 2922 浏览 4 评论 0原文

我的网站存在空白问题。我在文档类型之前包含了一些文件这会导致输出空白。

经过搜索我找到了这个解决方案： doctype 之前有空格问题

但是删除 后？>我仍然遇到问题。下面是代码：

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?>
<!DOCTYPE HTML>....

这里是 session.php：

<?php session_start();

// if a team name has been assigned to a session...
if ( isset($_SESSION ['teamName']))
{

//create "global variable $teamName that can be used across all pages as long as the function "session_start(); is present"
$teamName = $_SESSION ['teamName'];

}
else{

die ( "You are not logged in! Redirecting to login page...<meta http-equiv='REFRESH' content='2; url = index.php'>");

}

这里是 updatestage.php：

<?php
include("config.php");
//update stage

$inserted="n";
mysql_query ("UPDATE `team` SET `inserted`='$inserted' WHERE teamName = '$teamName' ");

$advance="n";
mysql_query ("UPDATE `game` SET `advance`='$advance' ");

这里是 getstageinfo.php：

<?php
include("include/config.php");
//Select the slogan from the current user
$currentStage = mysql_query("
SELECT `currentStage` FROM `team` WHERE `teamName` = '$teamName'
");
//assign the text located at the logo field (the path of the logo) to a variable $slogan
$row = mysql_fetch_assoc($currentStage);
$currentStage= $row['currentStage'];
?>

最后这里是 config.php：

<?php
// connect to database
$con = mysql_connect("xxxxxxx","xxxxxxx","xxxxxxx"); 

if (!$con)
      {
      die('Could not connect: ' . mysql_error());
      }

// select database 
mysql_select_db ("xxxxxxx");          
?>

/////////////////////////////////////////////////////////// ////////////////////////////////////////

好的，所以我已经添加回 ?> ;并尝试了以下建议：

<!DOCTYPE HTML>
<?php
include("include/session.php");
include("include/updatestage.php");
?>

或尝试：

<?php

echo "<!DOCTYPE HTML>\n";

include ("include/session.php");
include ("include/updatestage.php");

?>

产生：

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at public_html/period1.php:2) in public_html/include/session.php on line 1

尝试：

<?php
include("include/session.php");
include("include/updatestage.php");
?><!DOCTYPE HTML>

或：

<?php

  ob_start();

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

  ob_end_flush();

?>

仍然产生空白。

原文

I have a website with a white space problem. I am including a few files before the doctype
and this is causing a white space to be outputted.

After searching I have found this solution:
Problem with whitespace before doctype

However after removing ?> I am still getting the problem. Below is the code:

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?>
<!DOCTYPE HTML>....

Here is session.php:

<?php session_start();

// if a team name has been assigned to a session...
if ( isset($_SESSION ['teamName']))
{

//create "global variable $teamName that can be used across all pages as long as the function "session_start(); is present"
$teamName = $_SESSION ['teamName'];

}
else{

die ( "You are not logged in! Redirecting to login page...<meta http-equiv='REFRESH' content='2; url = index.php'>");

}

Here is updatestage.php:

<?php
include("config.php");
//update stage

$inserted="n";
mysql_query ("UPDATE `team` SET `inserted`='$inserted' WHERE teamName = '$teamName' ");

$advance="n";
mysql_query ("UPDATE `game` SET `advance`='$advance' ");

Here is getstageinfo.php:

<?php
include("include/config.php");
//Select the slogan from the current user
$currentStage = mysql_query("
SELECT `currentStage` FROM `team` WHERE `teamName` = '$teamName'
");
//assign the text located at the logo field (the path of the logo) to a variable $slogan
$row = mysql_fetch_assoc($currentStage);
$currentStage= $row['currentStage'];
?>

And finally here is config.php:

<?php
// connect to database
$con = mysql_connect("xxxxxxx","xxxxxxx","xxxxxxx"); 

if (!$con)
      {
      die('Could not connect: ' . mysql_error());
      }

// select database 
mysql_select_db ("xxxxxxx");          
?>

//////////////////////////////////////////////////////////////////////////////////////////

Ok so I have added back in the ?> and tried the suggestions below:

<!DOCTYPE HTML>
<?php
include("include/session.php");
include("include/updatestage.php");
?>

Or trying:

<?php

echo "<!DOCTYPE HTML>\n";

include ("include/session.php");
include ("include/updatestage.php");

?>

Produces:

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at public_html/period1.php:2) in public_html/include/session.php on line 1

Trying:

<?php
include("include/session.php");
include("include/updatestage.php");
?><!DOCTYPE HTML>

Or:

<?php

  ob_start();

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

  ob_end_flush();

?>

Still produces the white space.

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葬花如无物 2025-01-09 09:49:54

您也许可以像这样解决问题：

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?><!DOCTYPE HTML>

但是我观察到这方面的错误行为（尽管从 PHP4 开始就没有），因此保证修复的最简单的解决方案是放置在包含之前 - 因为包含的文件都不会输出任何内容，并且如果输出的话会破坏您的文档。

<!DOCTYPE HTML>
<?php

  include ("include/session.php");
  include ("include/updatestage.php");

?>
<!-- Rest of HTML -->

或者这样：

<?php

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

?>
<!-- Rest of HTML -->

如果您选择，请记住确保开始 标记中的 < 是所有文件中的第一个字符与第二个选项。

编辑首先完全没有考虑到会话/cookies问题，这已经引起了它的丑陋，这里有一个可行的解决方案：

<?php

  ob_start();

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

  ob_end_flush();

?>
<!-- Rest of HTML -->

You may be able to fix the problem like this:

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?><!DOCTYPE HTML>

But I have observed buggy behaviour in this respect (although not since PHP4), so the easiest solution that guarantees a fix is to put the <!DOCTYPE> before the include - since neither included file outputs anything, and would break your document if it did.

<!DOCTYPE HTML>
<?php

  include ("include/session.php");
  include ("include/updatestage.php");

?>
<!-- Rest of HTML -->

Or this:

<?php

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

?>
<!-- Rest of HTML -->

Remember to make sure that the < in the opening <?php tag is the first character in all files if you go with the second option.

EDIT Having in the first place completely failed to take into account the session/cookies problem that has reared it's ugly head, here is a working solution:

<?php

  ob_start();

  echo "<!DOCTYPE HTML>\n";

  include ("include/session.php");
  include ("include/updatestage.php");

  ob_end_flush();

?>
<!-- Rest of HTML -->

回复收藏 0 原文

活泼老夫 2025-01-09 09:49:54

您不必删除 ?>。只是后面有一个空格。您的代码应如下所示：

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?><!DOCTYPE HTML>....

You don't have to remove the ?>. Just the whitespace after it. Your code should look like this:

<?php
include ("include/session.php");
include ("include/updatestage.php");                                        
?><!DOCTYPE HTML>....

回复收藏 0 原文

五里雾 2025-01-09 09:49:54

我想通了。您必须对要包含的文件进行“UTF-8 without BOM”编码。

主 php 文件不一定必须使用“UTF-8 without BOM”进行编码，事实上，如果您有某些特殊字符（给我带来了问题），我建议您不要这样做。

也在这里得到了回答：PHP包含导致空格在页面顶部

回复收藏 0 原文

信仰 2025-01-09 09:49:54

好的，这些步骤应该可以解决您的问题：

浏览您网站上的所有 PHP 文件。如果文件以 ?> 结尾（可能还有一些空格），请删除 ?>。（当然，如果 ?> 之后有一些 HTML 文本，那么您不应该将其删除。）
在执行上述操作时，还要检查第一个 < 前面没有空格。 code> 在任何文件中。
如果之后仍有问题，请检查 前面是否有不可见字符。有多种方法可以做到这一点，但查看文件的十六进制转储是一种好方法。每个 PHP 文件（不以 HTML 文本开头）的前两个字节应为（十六进制 3c 3f）。

万一这些步骤无法解决问题，请告诉我们（最好包含出现问题的页面的链接，以便我们可以自己检查输出）。