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<?php echo date('W', strtotime("-2 days","2014-04-22"));
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 TypeError: strtotime(): Argument #2 ($baseTimestamp) must be of type ?int, string given in /in/VaLND:3 Stack trace: #0 /in/VaLND(3): strtotime('-2 days', '2014-04-22') #1 {main} thrown in /in/VaLND on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 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/VaLND on line 3 01
Output for 4.4.1 - 4.4.9, 5.0.5, 7.3.32 - 7.3.33
01
Output for 4.3.0 - 4.3.11, 4.4.0, 5.0.0 - 5.0.4
1

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