diff --git a/docs/misc/sign/wbi.md b/docs/misc/sign/wbi.md
index a5d1bfb..c35a84d 100644
--- a/docs/misc/sign/wbi.md
+++ b/docs/misc/sign/wbi.md
@@ -600,3 +600,119 @@ public class WbiTest {
    }
 }
 ```
+
+### PHP
+
+来自[SocialSisterYi/bilibili-API-collect#813](https://github.com/SocialSisterYi/bilibili-API-collect/issues/813)
+
+```php
+<?php
+/**
+ * B站 Wbi 测试
+ * @author Prk
+ */
+
+
+class Bilibili {
+
+    private $mixinKeyEncTab = [
+        46, 47, 18, 2, 53, 8, 23, 32, 15, 50, 10, 31, 58, 3, 45, 35, 27, 43, 5, 49,
+        33, 9, 42, 19, 29, 28, 14, 39, 12, 38, 41, 13, 37, 48, 7, 16, 24, 55, 40,
+        61, 26, 17, 0, 1, 60, 51, 30, 4, 22, 25, 54, 21, 56, 59, 6, 63, 57, 62, 11,
+        36, 20, 34, 44, 52
+    ];
+
+    function __construct() {
+    }
+
+    public function reQuery(array $query) {
+        $wbi_keys = $this->getWbiKeys();
+        return $this->encWbi($query, $wbi_keys['img_key'], $wbi_keys['sub_key']);
+    }
+
+    private function getMixinKey($orig) {
+        $t = '';
+        foreach ($this->mixinKeyEncTab as $n) $t .= $orig[$n];
+        return substr($t, 0, 32);
+    }
+
+    private function encWbi($params, $img_key, $sub_key) {
+        $mixin_key = $this->getMixinKey($img_key . $sub_key);
+        $curr_time = time();
+        $chr_filter = "/[!'()*]/";
+
+        $query = [];
+        $params['wts'] = $curr_time;
+
+        ksort($params);
+
+        foreach ($params as $key => $value) {
+            $value = preg_replace($chr_filter, '', $value);
+            $query[] = urlencode($key) . '=' . urlencode($value);
+        }
+
+        $query = implode('&', $query);
+        $wbi_sign = md5($query . $mixin_key);
+
+        return $query . '&w_rid=' . $wbi_sign;
+    }
+
+    private function getWbiKeys() {
+        $resp = @json_decode(
+            $this->curl_get(
+                'https://api.bilibili.com/x/web-interface/nav',
+                null,
+                'https://www.bilibili.com/'
+            ), true
+        );
+
+        if (!$resp) throw new Exception('请求失败');
+
+        $img_url = $resp['data']['wbi_img']['img_url'];
+        $sub_url = $resp['data']['wbi_img']['sub_url'];
+
+        return [
+            'img_key' => substr(basename($img_url), 0, strpos(basename($img_url), '.')),
+            'sub_key' => substr(basename($sub_url), 0, strpos(basename($sub_url), '.'))
+        ];
+    }
+
+    private function curl_get($url, $cookies = null, $referer = 'https://www.bilibili.com/', $ua = null, $proxy = null, $header = []) {
+        $ch = curl_init();
+        $header[] = "Accept: */*";
+        $header[] = "Accept-Language: en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7";
+        $header[] = "Connection: close";
+        $header[] = "Cache-Control: max-age=0";
+        curl_setopt_array($ch, [
+            CURLOPT_HTTPGET         =>  1,
+            CURLOPT_CUSTOMREQUEST   =>  'GET',
+            CURLOPT_RETURNTRANSFER  =>  1,
+            CURLOPT_HTTPHEADER      =>  $header,
+            CURLOPT_ENCODING        =>  '',
+            CURLOPT_URL             =>  $url,
+            CURLOPT_USERAGENT       =>  'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.36 Edg/102.0.1245.39',
+            CURLOPT_TIMEOUT         =>  15
+        ]);
+
+        if ($cookies) curl_setopt(
+            $ch,
+            CURLOPT_COOKIE,
+            $cookies
+        );
+
+        if ($referer) curl_setopt_array($ch, [
+            CURLOPT_AUTOREFERER =>  $referer,
+            CURLOPT_REFERER     =>  $referer
+        ]);
+
+        $content = curl_exec($ch);
+        curl_close($ch);
+        return $content;
+    }
+}
+
+$c = new Bilibili();
+echo $c->reQuery(['foo' => '114', 'bar' => '514', 'baz' => 1919810]);
+// bar=514&baz=1919810&foo=114&wts=1700384803&w_rid=4614cb98d60a43e50c3a3033fe3d116b
+
+```