标头位置在我的 php 代码中不起作用

2022-01-11 00:00:00 header php

我有这个代码，为什么我的标题位置不起作用?它是在我的控制面板中更新、编辑和删除某些页面的一种形式...我在 form.php 的同一文件夹中有一个 index.php 文件...有什么帮助吗?()我试图把标题放在后面编辑和删除...仍然转到表单页面而不是索引...

i have this code,why my header location not working? its a form of updating and editing and deleting some pages in my control panel...and i have an index.php file in the same folder of form.php...any help please?()i tryed to put the header after the editing and deleting...and still go to the form page not the index...

<?php
include "../../includes/site_includes.php";
//send
if ((isset($_POST["send"])) && ($_POST["send"] == 1)) {
    $pageid = $_POST["page_id"];
    $pagetitle = $_POST["page_title"];
    $nameinmenu = $_POST["page_menu_name"];
    $nameinurl = $_POST["page_name_url"];
    $link = $_POST["page_link"];
    $picture = $_POST["page_pic"];
    $desc = $_POST["page_desc"];
    $content = $_POST["page_content"];
}
if ((isset($_POST["act"])) && ($_POST["act"] == "add")) {
    $sql = insertpage();
    if ($result = $mysqli->prepare($sql)) {
        $result->bind_param("sssssss", $pagetitle, $nameinmenu, $nameinurl, $link, $picture, $desc, $content);
        $result->execute();
        $result->store_result();
        $rows = $result->num_rows;
    }
}
////edit
if ((isset($_GET["act"])) && ($_GET["act"] == "edit")) {
    $sql = getfrompages();
    if ($result = $mysqli->prepare($sql)) {
        $rekza = $_GET["id"];
        $result->bind_param("i", $rekza);
        $result->execute();
        $result->store_result();
        $rowsZ = $result->num_rows;
    }
    if ($rowsZ > 0) {
        $row = fetch($result);
        $pageid = $row[0]["page_id"];
        $pagetitle = $row[0]["page_title"];
        $nameinmenu = $row[0]["page_menu_name"];
        $nameinurl = $row[0]["page_name_url"];
        $link = $row[0]["page_link"];
        $picture = $row[0]["page_pic"];
        $desc = $row[0]["page_desc"];
        $content = $row[0]["page_content"];
    }
}
if ((isset($_GET["act"])) && ($_GET["act"] == "delete")) {
    $thedelid = $_GET["id"];
    $sql2 = delpage();
    if ($result2 = $mysqli->prepare($sql2)) {
        $result2->bind_param("i", $thedelid);
        $result2->execute();
        $result2->store_result();
        $rowsZ2 = $result2->num_rows;
    }
}
header('location: index.php');
exit();
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <title> pages add </title>
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
 </head>

 <body>
<form method="post" action="">
        <table>
            <tr>
                <td style="font-weight:bold;">title</td>
                <td><input type="text" name="page_title" value="<?=$pagetitle?>" /></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">name in menu</td>
                <td><input type="text" name="page_menu_name" value="<?=$nameinmenu?>" /></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">name in url</td>
                <td><input type="text" name="page_name_url" value="<?=$nameinurl?>" /></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">link</td>
                <td><input type="text" name="page_link" value="<?=$link?>" /></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">picture</td>
                <td><input type="text" name="page_pic" value="<?=$picture?>" /></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">description</td>
                <td><textarea name="page_desc"><?=$desc?></textarea></td>
            </tr>
            <tr>
                <td style="font-weight:bold;">content</td>
                <td><textarea name="page_content"><?=$content?></textarea></td>
            </tr>
            <tr>
                <td colspan="2">
                <input type="hidden" name="send" value="1" />
                <input type="hidden" name="act" value="<?=$_GET["act"]?>" />
                <input type="hidden" name="page_id" value="<?=$pageid?>" />
                <input type="submit" value="add" /></td>
            </tr>
        </table>
</form>
 </body>
</html>

已解决:@Mihai Iorga 代码我添加了 ob_start();

solved: with @ Mihai Iorga code i added ob_start();

推荐答案

那是因为你有一个输出:

That is because you have an output:

?>
<?php

导致空行输出.

header() 必须在发送任何实际输出之前调用，无论是通过普通 HTML 标记、文件中的空白行还是通过 PHP

合并所有 PHP 代码并确保文件开头没有任何空格.

Combine all your PHP codes and make sure you don't have any spaces at the beginning of the file.

如果您还有其他脚本，请在 header('location: index.php'); 之后添加 exit();.

also after header('location: index.php'); add exit(); if you have any other scripts bellow.

还将您的重定向标头移到最后一个 if 之后.

Also move your redirect header after the last if.

如果有内容，也可以通过注入javascript来重定向:

If there is content, then you can also redirect by injecting javascript:

<?php
    echo "<script>window.location.href='target.php';</script>";
    exit;
?>

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