fix a PHP Notice
fix a PHP Notice

pollopolea/core,cernbox/core,owncloud/core,pollopolea/core,bluelml/core,cernbox/core,endsguy/server,pixelipo/server,pmattern/server,jbicha/server,IljaN/core,michaelletzgus/nextcloud-server,whitekiba/server,IljaN/core,andreas-p/nextcloud-server,lrytz/core,pmattern/server,IljaN/core,cernbox/core,sharidas/core,IljaN/core,bluelml/core,pixelipo/server,whitekiba/server,andreas-p/nextcloud-server,Ardinis/server,lrytz/core,whitekiba/server,owncloud/core,IljaN/core,jbicha/server,nextcloud/server,nextcloud/server,sharidas/core,owncloud/core,lrytz/core,whitekiba/server,pmattern/server,pixelipo/server,pmattern/server,endsguy/server,michaelletzgus/nextcloud-server,endsguy/server,pixelipo/server,andreas-p/nextcloud-server,Ardinis/server,jbicha/server,lrytz/core,sharidas/core,sharidas/core,lrytz/core,pixelipo/server,jbicha/server,bluelml/core,owncloud/core,bluelml/core,Ardinis/server,bluelml/core,michaelletzgus/nextcloud-server,owncloud/core,pollopolea/core,michaelletzgus/nextcloud-server,xx621998xx/server,pollopolea/core,xx621998xx/server,phil-davis/core,jbicha/server,cernbox/core,Ardinis/server,endsguy/server,nextcloud/server,nextcloud/server,pollopolea/core,andreas-p/nextcloud-server,pmattern/server,xx621998xx/server,Ardinis/server,xx621998xx/server,endsguy/server,andreas-p/nextcloud-server,whitekiba/server,cernbox/core,sharidas/core,xx621998xx/server