如何解决PHP中复杂的URL操作问题，使用Purl库让URL管理变得轻而易举

<code class="bash">composer require ecomailcz/purl</code>

<pre class="brush:php;toolbar:false;">use Purl\Url;

// 从字符串创建
$url = new Url('http://example.com/products/category?page=1&sort=asc#top');

// 获取当前页面的 URL
// $currentUrl = Url::fromCurrent();

<pre class="brush:php;toolbar:false;">$url = (new Url('http://jwage.com'))
    ->set('scheme', 'https') // 修改协议
    ->set('port', '443')     // 修改端口
    ->set('user', 'jwage')   // 设置用户名
    ->set('pass', 'password')// 设置密码
    ->set('path', 'about/me')// 设置路径
    ->set('query', 'param1=value1&param2=value2') // 设置查询参数
    ->set('fragment', 'section-1'); // 设置片段

echo $url->getUrl();
// 输出：https://jwage:password@jwage.com:443/about/me?param1=value1&param2=value2#section-1

<pre class="brush:php;toolbar:false;">$url = new Url('http://example.com');

// 逐个添加路径片段
$url->path->add('products')->add('electronics');
echo $url; // http://example.com/products/electronics

// 直接设置路径字符串
$url->path = 'services/web-development';
echo $url; // http://example.com/services/web-development

// 获取路径片段数组
print_r($url->path->getData()); // Array ( [0] => services [1] => web-development )

<pre class="brush:php;toolbar:false;">$url = new Url('http://example.com');

// 设置单个查询参数
$url->query->set('category', 'books');
$url->query->set('page', 2);
echo $url; // http://example.com?category=books&page=2

// 从数组设置查询参数
$url->query->setData([
    'sort' => 'price_asc',
    'limit' => 10
]);
echo $url; // http://example.com?sort=price_asc&limit=10

// 获取查询参数数组
print_r($url->query->getData()); // Array ( [sort] => price_asc [limit] => 10 )

<pre class="brush:php;toolbar:false;">$url = new Url('http://example.com');
$url->fragment = 'section/comments?user=guest';

echo $url->fragment->path;  // section/comments
echo $url->fragment->query; // user=guest
echo $url; // http://example.com#section/comments?user=guest

<pre class="brush:php;toolbar:false;">// 从文本中提取 URL
$string = '访问我们的网站 http://example.com 或查看博客 https://blog.example.org/latest';
$urls = Url::extract($string);
echo $urls[0]; // http://example.com/
echo $urls[1]; // https://blog.example.org/latest

// 合并 URL
$baseUrl = new Url('http://example.com/old-path?param=value#fragment');
$baseUrl->join('http://new-domain.com/new-path');
echo $baseUrl; // http://new-domain.com/new-path?param=value#fragment