如何从存储在变量中的 URL 值中检索查询字符串值? [英] How to retrieve query string value from URL value stored in a variable?

问题描述

$url = 'http://www.domain.com/file.php?dir=r&hl=100,200&ord=3&key=a+b+c';

如果它是一个 url，我可以通过 $_GET['hl'] 获得 hl 的值.但是我如何从 $url 字符串中检索相同的内容.

If it were a url I could get value of hl by, say, $_GET['hl']. but how do I retrieve the same from $url string.

谢谢.

推荐答案

步骤如下:

$url = 'http://www.domain.com/file.php?dir=r&hl=100,200&ord=3&key=a+b+c';
print "<pre>";

print $url;

$url_parsed = parse_url($url);
print_r($url_parsed);

parse_str($url_parsed['query'], $url_parts);
print_r($url_parts);

print "</pre>";

产生这个输出:

http://www.domain.com/file.php?dir=r&hl=100,200&ord=3&key=a+b+cArray
(
    [scheme] => http
    [host] => www.domain.com
    [path] => /file.php
    [query] => dir=r&hl=100,200&ord=3&key=a+b+c
)
Array
(
    [dir] => r
    [hl] => 100,200
    [ord] => 3
    [key] => a b c
)

参见 parse_url() 和 parse_str()

因此获得您想要的 h1 值的步骤是:

So the steps to get the h1 value you want are:

$url = 'http://www.domain.com/file.php?dir=r&hl=100,200&ord=3&key=a+b+c';
$url_parsed = parse_url($url);
parse_str($url_parsed['query'], $url_parts);
print $url_parts['h1'];

这篇关于如何从存储在变量中的 URL 值中检索查询字符串值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！