Question

所以这是网站：

如果你转到网址并突出显示上页，你会看到：

    Warning: session_start(): Cannot send session cache limiter -
 headers already sent (output started at
 /home/mirmehrk/public_html/canz.co/index.php:1) in
 /home/mirmehrk/public_html/canz.co/include/fgcontactform.php on line
 63

任何人都可以帮我删除此错误吗？

正如你所看到的，在我打开php之前没有什么，所以问题出在哪里？也许第二个PHP是问题？不是吗？

索引文件：

<?PHP
/*
    Contact Form from HTML Form Guide
    This program is free software published under the
    terms of the GNU Lesser General Public License.
    See this page for more info:
    http://www.html-form-guide.com/contact-form/simple-modal-popup-contact-form.html
*/
//1. First, include the file popup-contactform.php
require_once('popup-contactform.php');

//2. link to the style file contact.css
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
      <meta http-equiv='Content-Type' content='text/html; charset=utf-8'/>
      <meta name="description" content="">
      <meta name="viewport" content="width=device-width">
      <title>Canz.co</title>
      <link rel="STYLESHEET" type="text/css" href="popup-contact.css">


</head>
<body onload="javascript:fg_hideform('fg_formContainer','fg_backgroundpopup');">
    <div id="canvas" align="center" style="z-index:0;position:relative"></div>
        <div id="lang">
            <span>
            <a href="http://canz.co">
                <input type="button" id="btnEN" value="EN"/>
            </a>
            </span>
            <span>
            <a href="http://canz.co/fa">
                <input type="button" id="btnFA" value="فا"/>
            </a>
            </span>
    </div>
        <a href='javascript:fg_popup_form("fg_formContainer","fg_form_InnerContainer","fg_backgroundpopup");'>
            <div style="font-size:18px;color:#9db1b2;text-align:center;margin-top:16px;">CONTACT US</div>
        </a>
        <div style="font-size:12px;color:#0a7a6b;text-align:center;margin-top:9px;">Recommended resolution: 1280px X 720px</div>
        <div style="font-size:14px;color:#9db1b2;text-align:center;">Copyright 2014, All rights reserved</div>

      <script src="js/jquery.min.js"></script>
      <script src="js/raphael-min.js"></script>
      <script src="js/our_script.js"></script>
      <script>
            var bodhei = window.innerHeight;
            var bodwid = window.innerWidth;
            $('body').innerHeight(bodhei);
            $('body').innerWidth(bodwid);
      </script>


<?PHP
//3. php include contactform-code.php at the end of the page

require_once('contactform-code.php');
?>

</body>
</html>

Answer 1

这意味着，在<?php之前已有输出。即使是空格也会被视为输出。

Answer 2

在调用session_start之前，请检查您是否发送了任何数据。只需将session_start作为PHP文件的第一行。

<?php
session_start();

并确保之前绝对没有空格

session_start（）：无法发送会话缓存限制器

2 个答案: