3v4l.org

run code in 150+ php & hhvm versions
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<?php $test = 0; $$test = 1; $странноеИмя = 2; echo $test . PHP_EOL; echo $$test . PHP_EOL; echo $странноеИмя . PHP_EOL;
Output for 4.3.10 - 4.4.9, 5.0.2 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
0 1 2
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/1vaHM on line 5 0PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/1vaHM on line 6 1PHP_EOL Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/1vaHM on line 7 2PHP_EOL