3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('name', 'fake'); $data = array("name" => "World", "fake" => "something"); echo "Hello $data[name] 1!\n"; echo "Hello {$data[name]} 2!\n"; echo "Hello {$data['name']} 3!\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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 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
Hello World 1! Hello something 2! Hello World 3!
preferences:
279.01 ms | 406 KiB | 385 Q