Question

I am trying to grab a parameter from a webpage and insert it into a URL link on that same page but am having problems with the syntax.

So, for example, the webpage is www.website.com?src=mm

Currently the code on the page that does not pull in the parameter is

<?php echo "<A HREF='http://www.website2.com?offer=AAt&sub1=422'><B>Click Here</B></A><BR>" ?>

I would like to include that "mm" parameter at the end of the URL so the final URL is:

http://www.website2.com?offer=AA&sub1=422&sub2=mm

I tried the following but does not work:

<?php echo "<A HREF='http://www.website2.com?offer=AA&sub1=422&sub2='.$_GET['src']."><B>Click Here</B></A><BR>" ?>

Any ideas on how to get this to work? Thanks

Answer 1

您的代码甚至无法编译：

 Parse error: syntax error, unexpected 'http' (T_STRING), expecting ',' or ';' in /var/www/html/ImagePT/test.php on line 1

必须是

<?php echo '<A HREF="http://www.website2.com?offer=AA&sub1=422&sub2='.$_GET['src'].'"><B>Click Here</B></A><BR>'; ?>

但是由于我只是想给您一些进一步的建议：

您不必大写HTML，这是很不寻常的（不是不可能，但您不会经常看到它）-然后，当$_GET['src']变量未定义时，此脚本很可怕。我会检查它是否已设置，然后相应地修改URL。所以我的建议是使用以下内容：

<?php

    if(isset($_GET['src']))
    {
        echo '<a href="http://www.website2.com?offer=AA&sub1=422&sub2='.$_GET['src'].'"><b>Click Here</b></a></br>'; 
    }
    else
    {
        echo '<a href="http://www.website2.com?offer=AA&sub1=422"><b>Click Here</b></a></br>'; 
    }

?>

Passing URL parameter to link on page

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