diff --git a/php/includes/functions.php b/php/includes/functions.php
index 5187a70..80c7a32 100644
--- a/php/includes/functions.php
+++ b/php/includes/functions.php
@@ -16,4 +16,9 @@ function line(string $line): void
 {
     line($line);
     exit($code);
-}
\ No newline at end of file
+}
+
+function execInDirectory(string $dir, string $command): ?string
+{
+    return shell_exec(sprintf('cd %s && %s', $dir, $command));
+}