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<?php assert(1==2); //assert(1==2, "1 does not equal 2");
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught AssertionError: assert(1 == 2) in /in/rYPnT:2 Stack trace: #0 /in/rYPnT(2): assert(false, 'assert(1 == 2)') #1 {main} thrown in /in/rYPnT on line 2
Process exited with code 255.
Output for 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
Warning: assert(): assert(1 == 2) failed in /in/rYPnT on line 2
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 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, 5.6.8 - 5.6.28
Warning: assert(): Assertion failed in /in/rYPnT on line 2
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/rYPnT on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Warning: assert() [http://www.php.net/function.assert]: Assertion failed in /in/rYPnT on line 2

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