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<?php echo date_diff("2013-01-04","2013-01-01");
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_diff(): Argument #1 ($baseObject) must be of type DateTimeInterface, string given in /in/ekXOm:3 Stack trace: #0 /in/ekXOm(3): date_diff('2013-01-04', '2013-01-01') #1 {main} thrown in /in/ekXOm on line 3
Process exited with code 255.
Output for 5.5.8 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: date_diff() expects parameter 1 to be DateTimeInterface, string given in /in/ekXOm on line 3
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.7
Warning: date_diff() expects parameter 1 to be DateTime, string given in /in/ekXOm on line 3

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