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<?php echo date('Y-m-d', strtotime('+1 month', date('2017/01/31')));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/NEIiT:3 Stack trace: #0 /in/NEIiT(3): strtotime('+1 month', '2017/01/31') #1 {main} thrown in /in/NEIiT on line 3
Process exited with code 255.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: A non well formed numeric value encountered in /in/NEIiT on line 3 1970-02-01
Output for 7.3.32 - 7.3.33
1970-02-01

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