如何在PHP的href链接中发送多个值? [英] How to send multiple values in a href link in PHP?

问题描述

我想使用href链接将多个值发送到不同的页面.但是我检索的只是前2个值，其余显示未定义索引的错误.

I want to send multiple values to a different page using a href link. But what I retrieve is the first 2 values only, rest shows an error of undefined index.

我的代码是:

<?php 

echo "<a href='index.php?choice=search&cat=".$cat."&subcat=".$subcat."&srch=".$srch."&page=".$next."'> Next </a>";

?>

我仅获得"choice"和"cat"的值. 请告诉我上面的代码有什么问题.

I get the values of "choice" and "cat" only. Please tell me whats wrong in the above code.

推荐答案

尝试使用urlencode，好像字符串中有任何特殊字符一样，它可能会对整个查询字符串产生影响；

try using urlencode, as if there are any special characters in the strings, it could have an effect on the querystring as a whole;

echo "<a href='index.php?choice=search&cat=".urlencode($cat)."&subcat=".urlencode($subcat)."&srch=".urlencode($srch)."&page=".urlencode($next)."'> Next </a>";

另外，在srch和page之间留有一个空格，这可能是造成问题的原因.

Plus you had a space between srch and page, that could have been causing a problem.

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