Question

我正在尝试将PHP输出的值捕获到会话或cookie中，以便我可以在其他页面中调用它。请参阅下面的示例

会话page1.php中

<?php
session_start(); 
ob_start();
?>

<!DOCTYPE HTML>
<!--
Strongly Typed 1.1 by HTML5 UP
html5up.net | @n33co
Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)
-->

<html lang="en" xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml">
<?php $servurl = basename($_SERVER['REQUEST_URI']); ?>
<?php include_once "includes/ghead.php" ?>
<body itemscope itemtype="http://schema.org/CreativeWork" class="upload">

HEAD AND HEADER HTML CODE GOES HERE

<?php
 $fpath="upload/myImage.jpg";
 $size = getimagesize("$fpath");
 $nheight = $size[1];
 $nwidth = $size[0];

// Setting sessions
  $_SESSION['filepath'] = $fpath;
  $_SESSION['nwidth'] = $nwidth;
  $_SESSION['nheight'] = $nheight;

session_write_close(); 
?>
<header>   
  <h2><?php echo $fpath; ?></h2>
 <br> some html code goes here
 <br> <a href='session-page2.php'>go to page 2</a>
</header>
<?php echo $_SESSION['filepath']; ?>
</body>
</html>

我现在想要获取第2页中的会话值。

会话使page2.php

<?php
session_start();

echo $_SESSION['filepath'].": ".$_SESSION['nwidth']."x".$_SESSION['nheight'];
session_write_close();
?>

问题是page1.php没有生成会话。我尝试使用cookie做同样的事情，我也没有运气。

cookie的page1.php中

<?php
 ob_start();
 session_start(); 

 $fpath="upload/myImage.jpg";
 $size = getimagesize("$fpath");
 $nheight = $size[1];
 $nwidth = $size[0];

// Setting cookies
  $cookie_name = 'test_cookie';
  $cookie_value = $fpath;
  setcookie($cookie_name, $cookie_value, time() + (3600), '/'); // 1 hour (60 minutes * 60 seconds = 3,600 seconds)

  $cookie_name2 = 'test_cookie2';
  $cookie_value2 = $nwidth;
  setcookie($cookie_name2, $cookie_value2, time() + (3600), '/'); // 1 hour (60 minutes * 60 seconds = 3,600 seconds)

  $cookie_name3 = 'test_cookie3';
  $cookie_value3 = $nheight;
  setcookie($cookie_name3, $cookie_value3, time() + (3600), '/'); // 1 hour (60 minutes * 60 seconds = 3,600 seconds)

session_write_close(); 
ob_end_clean();
?>

我现在想要获取第2页中的cookie值。

<?php
 ob_start();
 session_start(); 

echo $_COOKIE['test_cookie1'].": ".$_COOKIE['test_cookie2']."x".$_COOKIE['test_cookie3'];

session_write_close(); 
ob_end_clean();
?>

未生成Cookie且未保存该值。有人能告诉我我做错了什么吗？代码看起来不错，应该保存高度/宽度和文件名的值/输出。另外，如果在PHP中无法做到这一点，我是否应该使用Ajax来保存值？如果有，有人可以指出我正确的方向吗？

提前感谢大家的帮助！

Answer 1

测试一下，如果它没有在那里工作，你的php安装或配置有问题。单击刷新时，会话值应增加+1

<?php
session_start();
if (isset($_SESSION['test']))
{
    $_SESSION['test'] = $_SESSION['test'] + 1;
}
    else
    {
        $_SESSION['test'] = 1;
    }
        echo 'Session value = '.$_SESSION['test'].'<br /><a href="">Refresh</a>';
?>

在会话或cookie中捕获PHP值

1 个答案: