Fatal error: Uncaught Error: Call to undefined function GetWholeColumnFromTable() in /var/www/html/project_r/actual_prg/system/TESZT_MenuBar.php:32 Stack trace: #0 /var/www/html/project_r/actual_prg/system/TESZT_MenuBar.php(21): getWorkdays('2018-01-11', '2018-01-22') #1 {main} thrown in /var/www/html/project_r/actual_prg/system/TESZT_MenuBar.php on line 32