核心配置：path 模式 + 隱藏 index.php
'components'=>[
'urlManager'=>[
'urlFormat'=>'path', // 路徑格式：/controller/action/param/value
'showScriptName'=>false, // 隱藏 index.php
'urlSuffix'=>'.html', // 可選：偽靜態後綴
'caseSensitive'=>false, // 不區分大小寫
'rules'=>[
'posts'=>'post/list',
'post/'=>'post/view',
'post//'=>'post/view',
'<controller:\w+>/<action:\w+>'=>'<controller>/<action>',
],
],
],</code></pre>
<h2>Apache .htaccess（與 index.php 同級目錄）</h2>
<pre class="code"><code>RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php</code></pre>
<p>確保 Apache 載入 <code>mod_rewrite</code> 並允許 <code>AllowOverride All</code>。</p>
<h2>規則寫法詳解</h2>
<table border="1" cellpadding="6" cellspacing="0">
<tr><th>規則</th><th>匹配 URL</th><th>路由到</th></tr>
<tr><td><code>'posts'=>'post/list'</code></td><td><code>/posts.html</code></td><td><code>PostController::actionList()</code></td></tr>
<tr><td><code>'post/<id:\d+>'=>'post/view'</code></td><td><code>/post/123.html</code></td><td><code>actionView($id=123)</code></td></tr>
<tr><td><code>'post/<id:\d+>/<title>'=>'post/view'</code></td><td><code>/post/123/hello-world.html</code></td><td><code>actionView($id=123, $title='hello-world')</code></td></tr>
<tr><td><code>'<controller>/<action>'=>'<controller>/<action>'</code></td><td><code>/user/login.html</code></td><td><code>UserController::actionLogin()</code></td></tr>
</table>
<h2>進階技巧</h2>
<ul>
<li><strong>參數預設值</strong>：<code>'tos'=>['site/page', 'defaultParams'=>['alias'=>'terms']]</code> 訪問 <code>/tos.html</code> 等同 <code>/site/page/alias/terms.html</code>。</li>
<li><strong>不同後綴</strong>：<code>'post/<id>'=>['post/view', 'urlSuffix'=>'.json']</code> 單獨指定 JSON 後綴。</li>
<li><strong>主機名路由</strong>：<code>'https://<user:\w+>.example.com/<action>' => '<action>/host'</code> 支持二級域名路由。</li>
<li><strong>控制器獲取參數</strong>：<code>actionView($id)</code> 自動綁定，或 <code>Yii::app()->request->getQuery('id')</code>。</li>
</ul>
<h2>性能提示</h2>
<p>規則過多會降低解析速度（線性匹配）。高流量站點建議：</p>
<ol>
<li>盡量合併通用規則，減少條目數。</li>
<li>將常用路由前置。</li>
<li>考慮緩存解析結果或改用 Nginx rewrite 直接轉發。</li>
</ol>
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