Fix incorrect local variable reference to class property
Fix incorrect local variable reference to class property

OpenWestConference/opencfp,MidwestPHP/opencfp_mwphp15,phphants/opencfp,phphants/opencfp,opencfp/opencfp,opencfp/opencfp,jugisahunk/200OK_CFP,monoku/opencfp,DallasPHP/opencfp,OpenWestConference/opencfp,DallasPHP/opencfp,localheinz/opencfp,OpenWestConference/opencfp,GrUSP/opencfp,MidwestPHP/opencfp_mwphp15,pmeth/opencfp,DallasPHP/opencfp,DevOpsDaysChicago/opencfp,GrUSP/opencfp,mdwheele/opencfp,MidwestPHP/opencfp_mwphp15,localheinz/opencfp,OpenWestConference/opencfp,monoku/opencfp,mdwheele/opencfp,monoku/opencfp,GrUSP/opencfp,MidwestPHP/opencfp_mwphp15,jugisahunk/200OK_CFP,DevOpsDaysChicago/opencfp,pmeth/opencfp,localheinz/opencfp,DevOpsDaysChicago/opencfp,PHPBenelux/opencfp,PHPBenelux/opencfp,PHPBenelux/opencfp,phphants/opencfp,localheinz/opencfp,monoku/opencfp,mdwheele/opencfp,jugisahunk/200OK_CFP,phphants/opencfp,PHPBenelux/opencfp,GrUSP/opencfp,mdwheele/opencfp,pmeth/opencfp,opencfp/opencfp