3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!in_array($status = $_GET['st'] ?? '', ['ac', 'ar'])) { echo "1: \$_GET invalid\n"; } $_GET['st'] = 'x'; if (!in_array($status = $_GET['st'] ?? '', ['ac', 'ar'])) { echo "2: \$_GET invalid\n"; } $_GET['st'] = 'ac'; if (!in_array($status = $_GET['st'] ?? '', ['ac', 'ar'])) { echo "3: \$_GET invalid\n"; } $_GET['st'] = 'ar'; if (!in_array($status = $_GET['st'] ?? '', ['ac', 'ar'])) { echo "4: \$_GET invalid\n"; }
Output for 7.1.25 - 7.1.32, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
1: $_GET invalid 2: $_GET invalid
preferences:
134.06 ms | 407 KiB | 5 Q