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<?php echo date_diff( '2014-09-03 15:00:00', '2014-09-04 15:00:00' )->format('%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_diff(): Argument #1 ($baseObject) must be of type DateTimeInterface, string given in /in/PRS8F:2 Stack trace: #0 /in/PRS8F(2): date_diff('2014-09-03 15:0...', '2014-09-04 15:0...') #1 {main} thrown in /in/PRS8F on line 2
Process exited with code 255.
Output for 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: date_diff() expects parameter 1 to be DateTimeInterface, string given in /in/PRS8F on line 2 Fatal error: Uncaught Error: Call to a member function format() on bool in /in/PRS8F:2 Stack trace: #0 {main} thrown in /in/PRS8F on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Warning: date_diff() expects parameter 1 to be DateTimeInterface, string given in /in/PRS8F on line 2 Fatal error: Uncaught Error: Call to a member function format() on boolean in /in/PRS8F:2 Stack trace: #0 {main} thrown in /in/PRS8F on line 2
Process exited with code 255.
Output for 5.6.8 - 5.6.28
Warning: date_diff() expects parameter 1 to be DateTimeInterface, string given in /in/PRS8F on line 2 Fatal error: Call to a member function format() on boolean in /in/PRS8F on line 2
Process exited with code 255.
Output for 5.5.24 - 5.5.35
Warning: date_diff() expects parameter 1 to be DateTimeInterface, string given in /in/PRS8F on line 2 Fatal error: Call to a member function format() on a non-object in /in/PRS8F on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Warning: date_diff() expects parameter 1 to be DateTime, string given in /in/PRS8F on line 2 Fatal error: Call to a member function format() on a non-object in /in/PRS8F on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Call to undefined function date_diff() in /in/PRS8F on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/PRS8F on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/PRS8F on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/PRS8F on line 2
Process exited with code 255.

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