Online PHP editor | output for vJkSU

Output for 7.3.0 - 7.3.13, 7.4.0 - 7.4.1: Warning: date_modify() expects parameter 1 to be DateTime, bool given in /in/vJkSU on line 6 Fatal error: Uncaught Error: Call to a member function getTimestamp() on bool in /in/vJkSU:7 Stack trace: #0 {main} thrown in /in/vJkSU on line 7
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26: Warning: date_modify() expects parameter 1 to be DateTime, boolean given in /in/vJkSU on line 6 Fatal error: Uncaught Error: Call to a member function getTimestamp() on boolean in /in/vJkSU:7 Stack trace: #0 {main} thrown in /in/vJkSU on line 7
Process exited with code 255.
Output for 5.6.0 - 5.6.40: Warning: date_modify() expects parameter 1 to be DateTime, boolean given in /in/vJkSU on line 6 Fatal error: Call to a member function getTimestamp() on boolean in /in/vJkSU on line 7
Process exited with code 255.
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38: Warning: date_modify() expects parameter 1 to be DateTime, boolean given in /in/vJkSU on line 6 Fatal error: Call to a member function getTimestamp() on a non-object in /in/vJkSU on line 7
Process exited with code 255.
Output for 5.2.0 - 5.2.5: Warning: date_create(): Failed to parse time string (1408701067) at position 8 (6): Unexpected character in /in/vJkSU on line 6 Fatal error: Call to a member function getTimestamp() on a non-object in /in/vJkSU on line 7
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_modify() in /in/vJkSU on line 6
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: date_modify() in /in/vJkSU on line 6
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_modify() in /in/vJkSU on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: date_modify() in /in/vJkSU on line 6