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run code in 150+ php & hhvm versions
Bugs & Features
<?php assert(create_function('', '};print(php_uname());//'));
Output for 5.6.28, 7.0.14 - 7.1.0
Linux php_shell 4.8.6-1-ARCH #1 SMP PREEMPT Mon Oct 31 18:51:30 CET 2016 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 5.5.25 - 5.5.32, 5.5.34, 5.6.8 - 5.6.18, 5.6.20 - 5.6.21, 7.0.0 - 7.0.3, 7.0.5 - 7.0.6
Linux php_shell 4.4.5-1-ARCH #1 SMP PREEMPT Thu Mar 10 07:38:19 CET 2016 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 5.5.33, 5.6.19, 7.0.4
Linux php_shell 4.4.1-2-ARCH #1 SMP PREEMPT Wed Feb 3 13:12:33 UTC 2016 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for hhvm-3.12.0
Linux php_shell 4.4.1-2-ARCH #1 SMP PREEMPT Wed Feb 3 13:12:33 UTC 2016 x86_64 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1'
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.5.24, 5.5.35 - 5.6.7
Linux php_shell 4.5.4-1-ARCH #1 SMP PREEMPT Wed May 11 22:21:28 CEST 2016 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 5.4.39 - 5.4.45
Linux php_shell 4.1.6-1-ARCH #1 SMP PREEMPT Mon Aug 17 08:52:28 CEST 2015 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 5.4.34 - 5.4.38
Linux php_shell 3.19.0-1-ARCH #1 SMP PREEMPT Mon Feb 9 07:08:20 CET 2015 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 5.3.0 - 5.4.32
Linux php_shell 3.8.2 #3 SMP Fri May 31 14:28:26 UTC 2013 x86_64 Warning: Unexpected character in input: ' in /in/F2UNA(1) : assert code on line 1 Notice: Use of undefined constant lambda_1 - assumed 'lambda_1' in /in/F2UNA(1) : assert code on line 1
Output for 4.3.2 - 4.4.1, 4.4.3 - 5.0.5, 5.1.1, 5.1.3 - 5.1.4, 5.1.6 - 5.2.17
Linux php_shell 3.8.2 #3 SMP Fri May 31 14:28:26 UTC 2013 x86_64 Warning: assert(): Assertion "" failed in /in/F2UNA on line 1
Output for 4.4.2, 5.1.2, 5.1.5
//}Linux php_shell 3.8.2 #3 SMP Fri May 31 14:28:26 UTC 2013 x86_64 Warning: assert(): Assertion "" failed in /in/F2UNA on line 1
Output for 5.1.0

Process exited with code 137.
Output for 4.3.1
Linux php_shell 3.8.2 #3 SMP Fri May 31 14:28:26 UTC 2013 x86_64 Warning: assert() [http://www.php.net/function.assert]: Assertion "" failed in /in/F2UNA on line 1
Output for 4.3.0
Linux php_shell 4.1.6-1-ARCH #1 SMP PREEMPT Mon Aug 17 08:52:28 CEST 2015 x86_64 Warning: assert() [http://www.php.net/function.assert]: Assertion "" failed in /in/F2UNA on line 1