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run code in 300+ PHP versions simultaneously
<? namespace B { const TEST12 = 1; } namespace A { use const B\TEST1 as TEST1; echo TEST1; define ( 'TEST1', 5 ); echo TEST1; } ?>
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, 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
<? namespace B { const TEST12 = 1; } namespace A { use const B\TEST1 as TEST1; echo TEST1; define ( 'TEST1', 5 ); echo TEST1; } ?>
Output for 8.0.13
Fatal error: Uncaught Error: Undefined constant "B\TEST1" in /in/JKbls:12 Stack trace: #0 {main} thrown in /in/JKbls on line 12
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6, 7.3.32 - 7.3.33, 7.4.33
Fatal error: Uncaught Error: Undefined constant 'B\TEST1' in /in/JKbls:12 Stack trace: #0 {main} thrown in /in/JKbls on line 12
Process exited with code 255.
Output for 5.6.16 - 5.6.28
Notice: Use of undefined constant TEST1 - assumed 'TEST1' in /in/JKbls on line 12 TEST1 Notice: Use of undefined constant TEST1 - assumed 'TEST1' in /in/JKbls on line 14 TEST1
Output for 5.6.0 - 5.6.15
Notice: Use of undefined constant TEST1 - assumed 'TEST1' in /in/JKbls on line 12 TEST15
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Parse error: syntax error, unexpected 'const' (T_CONST), expecting identifier (T_STRING) or \\ (T_NS_SEPARATOR) in /in/JKbls on line 10
Process exited with code 255.

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