WAMP服务器上.htaccess的RewriteRule致登录表单提交异常

我在Windows电脑上安装了WAMP Server，系统采用PHP Slim框架。当前遇到的问题：登录表单部署在http://localhost/login地址，提交表单时本该把数据发送到http://localhost/login/do，但实际却被重定向回http://localhost/login。这套代码在Linux服务器上运行正常，推测是.htaccess里的重写规则没考虑URL的后续部分导致。把表单提交URL改成http://localhost/DoLogin能解决，但希望不改提交URL来修复。

相关配置代码如下：

.htaccess 重写规则 #

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(contact|login|unsubscribe|activation|activation-again|forgot-pass|banned|manage-profile|manage-acount|profile-settings|terms|privacy|faq|blog|clubs|browse|basic_search|online|timeline|permission-requests|my-validations|my-fans|my-gifts|my-invitations|gift_wheel|gift_select|my-visitors|my-reviews|my-blocklist|my_pictures|my_videos|my_xcoins|xcoin_acount|what_is_matcmeter|what_is_trust_score|medical_reports|picture|video|webcam_verification|quick_settings|my_messages|my_messagesV2|my_orders|site-maps|logout|welcome|signup|data/xcoin_islem_list)$ /$1.php?lang=en [L]

RewriteRule /faq/detail/(.*?)/(.*?)/(.*?)/(.*?)?$    /faq_detail.php?t_tbl=faq_contents&t_cat_id=$1&t_cat_name=$2&t_id=$3&t_title=$3 [QSA,NC,L]
RewriteRule /faq/categories/(.*?)/(.*?)?$    /faq_categories.php?t_tbl=faq_categories&t_cat_id=$1&t_cat_name=$2 [QSA,NC,L]
RewriteRule /blog/detail/(.*?)/(.*?)/(.*?)/(.*?)?$    /blog_detail.php?t_tbl=blog_contents&t_cat_id=$1&t_cat_name=$2&t_id=$3&t_title=$3 [QSA,NC,L]
RewriteRule /blog/categories/(.*?)/(.*?)?$    /blog_categories.php?t_tbl=blog_categories&t_cat_id=$1&t_cat_name=$2 [QSA,NC,L]
RewriteRule /profile/(.*?)?$    /member_profile.php?t_tbl=members&name=$1 [QSA,NC,L]
RewriteRule /create-events/(.*?)?$    /create-events.php?id=$1 [QSA,NC,L]
RewriteRule /show-feedback/(.*?)/(.*?)?$    /show-feedback.php?id=$1&name=$2 [QSA,NC,L]


RewriteCond %{REQUEST_FILENAME} !-f 
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ /api/index.php [QSA,NC,L]

登录表单代码 #

<div class="sign-user_card rounded pl-2 pr-2 pt-3 pb-3 shadow">
    <div class="sign-in-page-data">
        <div class="sign-in-from w-100 m-auto">
                                            
            <form class="mt-4" method="post" action="/login/do">
                <div class="form-group">
                    <label>E-mail address</label>
                    <input type="text" value="" class="form-control kar_tem_func" name="f_user" id="f_user">

                </div>
                <div class="form-group">
                    <label>Password</label>
                    <input type="password" value="" class="form-control kar_tem_func" name="f_pass" id="f_pass">
                </div>

            </form>
        </div>
    </div>

    <div class="d-flex justify-content-center links">
        <input type="submit" class="btn btn-primary btn-block">Log in</input>
    </div>
        
</div>

Slim 路由配置 #

$app->post('/login/do', function (Request $request, Response $response) {

    /*      The login operations take place here.    */

      $alert_text= 'OK!';

      return $response
      ->withStatus(200)
      ->withHeader("Content-Type", 'application/json')
      ->withJson(array([
          "id" => 1,
          "alert_text" => $alert_text
      ]));

    exit();
});

问题出在.htaccess的第一条重写规则上：这条规则用^(xxx)$匹配URL，但Windows环境下的Apache会把^login$误匹配到/login/do的前缀部分，导致/login/do被直接重写为/login.php?lang=en，根本到不了Slim的路由处理逻辑。

不用改表单提交URL，只要调整这条重写规则，确保它只匹配精确的一级路径，不会拦截带后续子路径的请求就行，有两种可行的改法：

改法一：精确匹配路径 #

把第一条规则的正则表达式改成^/(xxx)/?$，明确只匹配以/xxx开头且没有后续子路径的请求（允许末尾带斜杠）：

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^/(contact|login|unsubscribe|activation|activation-again|forgot-pass|banned|manage-profile|manage-acount|profile-settings|terms|privacy|faq|blog|clubs|browse|basic_search|online|timeline|permission-requests|my-validations|my-fans|my-gifts|my-invitations|gift_wheel|gift_select|my-visitors|my-reviews|my-blocklist|my_pictures|my_videos|my_xcoins|xcoin_acount|what_is_matcmeter|what_is_trust_score|medical_reports|picture|video|webcam_verification|quick_settings|my_messages|my_messagesV2|my_orders|site-maps|logout|welcome|signup|data/xcoin_islem_list)/?$ /$1.php?lang=en [L]

改法二：添加排除条件 #

给第一条规则加个额外的条件，直接排除所有包含第二个斜杠的请求，确保只有一级路径会被重写：

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# 排除带子路径的请求（比如/login/do这种有两个斜杠的）
RewriteCond %{REQUEST_URI} !^/[^/]+/
RewriteRule ^(contact|login|unsubscribe|activation|activation-again|forgot-pass|banned|manage-profile|manage-acount|profile-settings|terms|privacy|faq|blog|clubs|browse|basic_search|online|timeline|permission-requests|my-validations|my-fans|my-gifts|my-invitations|gift_wheel|gift_select|my-visitors|my-reviews|my-blocklist|my_pictures|my_videos|my_xcoins|xcoin_acount|what_is_matcmeter|what_is_trust_score|medical_reports|picture|video|webcam_verification|quick_settings|my_messages|my_messagesV2|my_orders|site-maps|logout|welcome|signup|data/xcoin_islem_list)$ /$1.php?lang=en [L]

原理说明 #

两种改法都是为了让/login/do这种带子路径的请求跳过第一条重写规则，继续往下执行，最终被最后一条规则转到Slim的api/index.php，从而触发对应的/login/do路由处理表单提交。这样就不用修改表单的提交URL，直接在.htaccess里调整规则就能解决问题。

内容的提问来源于stack exchange，提问作者EBoz