3v4l.org

run code in 300+ PHP versions simultaneously
<?php $allowedKeys = array('foo','baz'); $get = array('foo' => 'bar', 'baz' => 'bat'); $post = array('foo' => 'bar', 'baz' => 'bat'); if ((array_keys($get) === $allowedKeys) && (array_keys($post) === $allowedKeys) ) { echo "PASS\n"; } $get['notallowed'] = 'naughty'; if ((array_keys($get) === $allowedKeys) && (array_keys($post) === $allowedKeys) ) { echo "FAIL\n"; } else { echo "PASS\n"; } unset($get['notallowed']); $post['notallowed'] = 'naughty'; if ((array_keys($get) === $allowedKeys) && (array_keys($post) === $allowedKeys) ) { echo "FAIL\n"; } else { echo "PASS\n"; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
PASS PASS PASS

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257.31 ms | 406 KiB | 356 Q