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<?php date_default_timezone_set('Europe/Prague'); var_dump(unserialize('O:8:"DateTime":0:{}') == new DateTime);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Invalid serialization data for DateTime object in /in/g4GVk:4 Stack trace: #0 [internal function]: DateTime->__unserialize(Array) #1 /in/g4GVk(4): unserialize('O:8:"DateTime":...') #2 {main} thrown in /in/g4GVk on line 4
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
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 - 5.4.45, 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20
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 - 5.2.17, 5.3.0 - 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 - 4.3.11, 4.4.0 - 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 />

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