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<?php $date=date_create("2013-03-15"); date_sub($date,"40 days"); echo date_format($date,"Y-m-d"); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: date_sub(): Argument #2 ($interval) must be of type DateInterval, string given in /in/jbrRa:3 Stack trace: #0 /in/jbrRa(3): date_sub(Object(DateTime), '40 days') #1 {main} thrown in /in/jbrRa on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: date_sub() expects parameter 2 to be DateInterval, string given in /in/jbrRa on line 3 2013-03-15
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined function date_sub() in /in/jbrRa on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function date_create() in /in/jbrRa on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: date_create() in /in/jbrRa on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: date_create() in /in/jbrRa on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: date_create() in /in/jbrRa on line 2

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