Fatal error: Uncaught Error: Call to a member function setISODate() on float in /in/uI7JT:7
Stack trace:
#0 /in/uI7JT(11): getDay('Monday')
#1 {main}
thrown in /in/uI7JT on line 7
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Fatal error: Call to a member function setISODate() on double in /in/uI7JT on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Fatal error: Call to a member function setISODate() on a non-object in /in/uI7JT on line 7
Process exited with code 255.