use PHP 8 str_starts_with function

src/cli/document/clean.php

@@ -97,7 +97,7 @@ foreach ($config->cli->document->crawl->skip->stripos->url as $condition)
         // Delete local snaps
         $location = sprintf(
             '%s/%s',
-            '/' === substr($config->snap->storage->local->directory, 0, 1) ? $config->snap->storage->local->directory
+            str_starts_with($config->snap->storage->local->directory, '/') ? $config->snap->storage->local->directory // absolute path
                                                                            : __DIR__ . '/../../../' . $config->snap->storage->local->directory,
             implode(
                 '/',

src/cli/document/crawl.php

@@ -575,7 +575,7 @@ foreach($index->search('')
                 );
 
                 /// absolute
-                if ('/' === substr($config->snap->storage->tmp->directory, 0, 1))
+                if (str_starts_with($config->snap->storage->tmp->directory, '/'))
                 {
                     $filepath = $config->snap->storage->tmp->directory;
                 }
@@ -671,7 +671,7 @@ foreach($index->search('')
                     if ($allowed)
                     {
                         /// absolute
-                        if ('/' === substr($config->snap->storage->local->directory, 0, 1))
+                        if (str_starts_with($config->snap->storage->local->directory, '/'))
                         {
                             $filepath = $config->snap->storage->local->directory;
                         }