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<?php date_default_timezone_set('Europe/Prague'); var_dump(unserialize('O:8:"DateTime":0:{}') == new DateTime);
Output for 7.1.0
Fatal error: Uncaught Error: Invalid serialization data for DateTime object in /in/g4GVk:4 Stack trace: #0 [internal function]: DateTime->__wakeup() #1 /in/g4GVk(4): unserialize('O:8:"DateTime":...') #2 {main} thrown in /in/g4GVk on line 4
Process exited with code 255.
Output for 5.3.24 - 5.3.29, 5.4.14 - 7.0.14
Fatal error: Invalid serialization data for DateTime object in /in/g4GVk on line 4
Process exited with code 255.
Output for 5.3.22 - 5.3.23, 5.4.12 - 5.4.13
Warning: main(): Trying to compare an incomplete DateTime object in /in/g4GVk on line 4 bool(false)
Output for 5.2.2 - 5.3.21, 5.4.0 - 5.4.11

Process exited with code 139.
Output for 5.2.0 - 5.2.1
bool(true)
Output for 5.1.0 - 5.1.6
<br /> <b>Fatal error</b>: Class 'DateTime' not found in <b>/in/g4GVk</b> on line <b>4</b><br />
Process exited with code 255.
Output for 5.0.0 - 5.0.5
<br /> <b>Fatal error</b>: Call to undefined function date_default_timezone_set() in <b>/in/g4GVk</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.4.5 - 4.4.9
<br /> <b>Fatal error</b>: Call to undefined function: date_default_timezone_set() in <b>/in/g4GVk</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.4.4
<br /> <b>Fatal error</b>: Call to undefined function: date_default_timezone_set() in <b>/in/g4GVk</b> on line <b>3</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1
<br /> <b>Fatal error</b>: Call to undefined function: date_default_timezone_set() in <b>/in/g4GVk</b> on line <b>3</b><br />