diff --git a/scripts/migrate_encrypt_results.php b/scripts/migrate_encrypt_results.php
index 13ca05f0..0a1d79d0 100644
--- a/scripts/migrate_encrypt_results.php
+++ b/scripts/migrate_encrypt_results.php
@@ -32,13 +32,17 @@ $pdo = new PDO(
 $batch = 500;
 
 // Helper: migrate tabel dengan field-field sederhana (tanpa bidx)
-function migrate_simple(PDO $pdo, Ibl_encryptor $enc, string $table, string $pk, array $fields, string $check_field): void
+function migrate_simple(PDO $pdo, Ibl_encryptor $enc, $table, $pk, $fields, $check_field)
 {
     echo "=== {$table} ===\n";
-    $total      = 0;
-    $cols_sel   = implode(', ', array_merge([$pk], $fields));
-    $sets       = implode(', ', array_map(fn($f) => "{$f}_enc = ?", $fields));
-    $stmt       = $pdo->prepare("UPDATE {$table} SET {$sets} WHERE {$pk} = ?");
+    $total    = 0;
+    $cols_sel = implode(', ', array_merge([$pk], $fields));
+    $set_parts = array();
+    foreach ($fields as $f) {
+        $set_parts[] = "{$f}_enc = ?";
+    }
+    $sets = implode(', ', $set_parts);
+    $stmt = $pdo->prepare("UPDATE {$table} SET {$sets} WHERE {$pk} = ?");
 
     while (true) {
         $rows = $pdo->query(
@@ -48,7 +52,10 @@ function migrate_simple(PDO $pdo, Ibl_encryptor $enc, string $table, string $pk,
         if (empty($rows)) break;
 
         foreach ($rows as $row) {
-            $params = array_map(fn($f) => $enc->encrypt((string)($row[$f] ?? '')), $fields);
+            $params = array();
+            foreach ($fields as $f) {
+                $params[] = $enc->encrypt((string)(isset($row[$f]) ? $row[$f] : ''));
+            }
             $params[] = $row[$pk];
             $stmt->execute($params);
             $total++;