diff --git a/scripts/test_heavy.sh b/scripts/test_heavy.sh
index 0b29dbb..72003ac 100755
--- a/scripts/test_heavy.sh
+++ b/scripts/test_heavy.sh
@@ -450,7 +450,7 @@ function isPrime($n) {
     return true;
 }
 
-function handler(array $ctx): array {
+function handler($ctx) {
     global $CONSTS;
     $mat = [[1,2,3,4],[5,6,7,8],[9,10,11,12],[13,14,15,16]];
     $data = range(1, 50);
@@ -474,7 +474,7 @@ function handler(array $ctx): array {
         'is_prime_97'=> isPrime(97),
         'groups_3'   => groupByMod(array_slice($data, 0, 30), 3),
     ];
-    return ['statusCode' => 200, 'body' => json_encode($result)];
+    $ctx["response"]->getBody()->write(json_encode($result));
 }
 PHPEOF
 create_json "php" "$FN_BIG_PHP" "${TMP}/big_php.php"
@@ -564,8 +564,8 @@ function fib($n) {
     if ($n < 2) return $n;
     return fib($n-1) + fib($n-2);
 }
-function handler(array $ctx): array {
-    return ['statusCode' => 200, 'body' => 'cpu-burn-php:' . fib(28)];
+function handler($ctx) {
+    $ctx["response"]->getBody()->write('cpu-burn-php:' . fib(28));
 }
 PHPEOF
 create_json "php" "$FN_CPU_PHP" "${TMP}/cpu_php.php"
@@ -711,8 +711,8 @@ python3 - > "${TMP}/arc-php.zip" << 'EOF'
 import zipfile, io, sys
 buf = io.BytesIO()
 code = """<?php
-function handler(array $ctx): array {
-    return ['statusCode' => 200, 'body' => json_encode(['tag' => 'archive-php-ok', 'fib25' => 75025])];
+function handler($ctx) {
+    $ctx[\"response\"]->getBody()->write(json_encode(['tag' => 'archive-php-ok', 'fib25' => 75025]));
 }
 """
 with zipfile.ZipFile(buf, 'w', zipfile.ZIP_DEFLATED) as zf: