How to get parameters in url in PHP

How PHP gets the parameters in the url: First create a PHP sample file; then get the specified url parameters through the "parse_url($url);" method.

#The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

php Obtaining the parameter information in the url is one of the common test points in the PHP interview process. It is also a function that often needs to be implemented in our daily project development process. We can use parse_url and other related functions in PHP to accomplish.

So for PHP novices, how to implement it may be difficult, but it is actually very simple.

Let's use a simple example to introduce how PHP gets the parameters in the url.

The code example is as follows:

<?php
$url = &#39;http://www.php.cn/vip.html&#39;;
$url=parse_url($url);
echo &#39;协议 : &#39;.$url[&#39;scheme&#39;]."<br>";
echo &#39;主机 : &#39;.$url[&#39;host&#39;]."<br>";
echo &#39;路径 : &#39;.$url[&#39;path&#39;]."<br>";

The result of obtaining the url parameters is as shown below:

As shown in the figure, we obtained http://www.php.cn/vip.htmlAll parameters of this url, such as protocol, host, and path.

For example, we get the parameters of the URL http://www.php.cn/jishu/php/413303.html:

where parse_url functionParses the URL and returns its components.

Note: For severely unqualified URLs, parse_url() may return FALSE.

This article is an introduction to the method of obtaining the parameters in the URL in PHP. It is very simple and easy to understand. I hope it will be helpful to friends in need!

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