diff --git a/app/Services/ChannelProjectService.php b/app/Services/ChannelProjectService.php
index fb74051..848de84 100644
--- a/app/Services/ChannelProjectService.php
+++ b/app/Services/ChannelProjectService.php
@@ -498,9 +498,9 @@ class ChannelProjectService
             'php_uid' => $uid,
             'python' => $python,
             'python_is_abs' => $python !== '' && $python[0] === '/',
-            'python_is_link' => $python !== '' && @is_link($python),
+            'python_is_link' => $python !== '' && $this->pathIsLink($python),
             'python_is_file' => $python !== '' && @is_file($python),
-            'python_link' => ($python !== '' && @is_link($python)) ? (string) @readlink($python) : null,
+            'python_link' => $python !== '' ? ($this->symlinkTarget($python) ?: null) : null,
             'script' => $script,
             'script_exists' => $script !== '' && is_file($script),
             'path_env' => (string) (getenv('PATH') ?: ''),
@@ -520,10 +520,10 @@ class ChannelProjectService
         $bits = ['exit 127 = 命令不存在'];
         if ($python === '' || $python === 'python3') {
             $bits[] = '未找到可用 python（.env CORUNA_CHANNEL_BUILDER_NEW_PYTHON 为空且无 .venv）';
-        } elseif (! @is_file($python) && ! @is_link($python)) {
+        } elseif (! @is_file($python) && ! $this->pathIsLink($python)) {
             $bits[] = '解释器路径不存在: '.$python;
         } else {
-            $target = @is_link($python) ? (string) @readlink($python) : '';
+            $target = $this->symlinkTarget($python);
             if ($target !== '') {
                 $bits[] = 'venv python 软链指向 '.$target.'（目标机上可能没有这个 python）';
             }
@@ -614,13 +614,28 @@ class ChannelProjectService
         clearstatcache(true, $path);
 
         // is_link() checks the link inode inside the project; does not resolve target.
-        if (@is_link($path)) {
+        if ($this->pathIsLink($path)) {
             return true;
         }
 
         return @is_file($path);
     }
 
+    private function pathIsLink(string $path): bool
+    {
+        return function_exists('is_link') && @is_link($path);
+    }
+
+    private function symlinkTarget(string $path): string
+    {
+        if (! function_exists('readlink') || ! $this->pathIsLink($path)) {
+            return '';
+        }
+        $target = @\readlink($path);
+
+        return is_string($target) ? $target : '';
+    }
+
     private function builderScript(string $name, string $builderType): string
     {
         $path = $this->builderCwd($builderType).'/tools/'.$name;