从 url 获取变量

发布于 2024-11-19 13:48:31 字数 758 浏览 0 评论 0原文

我是 php 新手，但我正在尝试。我需要你们的帮助。我在浏览器地址栏中有以下网址 www.dome.com\mypage.php?stu=12234342 我正在尝试将 url 从主页传递到选择案例页面调用 select.php 如果我应该回显该网址，我会得到 www.dome.com\select.php。所以我决定回显 $_SERVER['HTTP_REFERER'] 相反，这给了我正确的网址。我如何回显 www.dome.com\mypage.php?stu=12234342 (12234342) 中的变量到 select.php。 select.php 包含需要 $var Stu=12234342 才能显示正确消息的代码。

$request_url=$_SERVER['HTTP_REFERER'] ; // 从浏览器获取 url 回显 $request_url;

$cOption = $_GET['id'];

switch($cOption) {
    case 1:
    echo ' some text';
        break;
    case 2:
    echo ' this page.php';
        break;

    case 3:
    echo 'got it'; 
        break;
    default:
        echo 'Whoops, didn\'t understand that option: <i>'.$cOption.'</i>';
}

？>

原文

i am new to php, but im trying. i need you guys help.
i have the following url in the browser address bar www.dome.com\mypage.php?stu=12234342
i am trying to pass the url from the main page to the select case page call select.php
if i should echo the url i get www.dome.com\select.php. so i have decided to echo $_SERVER['HTTP_REFERER']
instead, this gives me the correct url. how can i echo the variable from www.dome.com\mypage.php?stu=12234342 (12234342)
unto select.php. select.php contains code that needs the $var stu=12234342 in order to display the correct message.

$request_url=$_SERVER['HTTP_REFERER'] ; // takes the url from the browers
echo $request_url;

$cOption = $_GET['id'];

switch($cOption) {
    case 1:
    echo ' some text';
        break;
    case 2:
    echo ' this page.php';
        break;

    case 3:
    echo 'got it'; 
        break;
    default:
        echo 'Whoops, didn\'t understand that option: <i>'.$cOption.'</i>';
}

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天涯沦落人 2024-11-26 13:48:31

您可以使用 parse_url() 和 parse_string() 从 url 中获取变量：

<?php 

//assuming www.dome.com/mypage.php?stu=12234342;
  $url=$_SERVER['HTTP_REFERER'];

//parse the url to get the query_string-part
  $parsed_url=parse_url($url);

//create variables from the query_string
  parse_str($parsed_url['query'], $unsafe_vars);

//use the variables
  echo $unsafe_vars['stu'];//outputs 12234342
?>

但请注意：您不能依赖 HTTP_REFERER 的可用性。

You may use parse_url() and parse_string() to grab the variable from a url:

<?php 

//assuming www.dome.com/mypage.php?stu=12234342;
  $url=$_SERVER['HTTP_REFERER'];

//parse the url to get the query_string-part
  $parsed_url=parse_url($url);

//create variables from the query_string
  parse_str($parsed_url['query'], $unsafe_vars);

//use the variables
  echo $unsafe_vars['stu'];//outputs 12234342
?>

But note: you can't rely on the availability of HTTP_REFERER.

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