Replace `is_null()` by `===`
Replace `is_null()` by `===`

cakephp/cakephp,Phillaf/cakephp,eboominathan/cakephp,jerems02/cakephp,ndm2/cakephp,khoimt/cakephp-study,eboominathan/cakephp,berrygoudswaard/cakephp,tenkoma/cakephp,kumamidori/cakephp,cakephp-fr/cakephp,tenkoma/cakephp,CakeDC/cakephp,web-player/cakephp,timhoeppner/cakephp,burriko/cakephp,bravo-kernel/cakephp,garethellis36/cakephp,garethellis36/cakephp,jerems02/cakephp,eboominathan/cakephp,mvdriel/cakephp,nrother/cakephp,tenkoma/cakephp,bravo-kernel/cakephp,berrygoudswaard/cakephp,erikfig/cakephp,erikfig/cakephp,davidyell/cakephp,berrygoudswaard/cakephp,nrother/cakephp,HavokInspiration/cakephp,davidyell/cakephp,burriko/cakephp,cakephp-fr/cakephp,ionas/cakephp,davidyell/cakephp,dakota/cakephp,cakephp/cakephp,thinkingmedia/cakephp,gmponos/cakephp,gmponos/cakephp,dkarvounaris/cakephp,tenkoma/cakephp,garethellis36/cakephp,adopico/cakephp,khoimt/cakephp-study,ionas/cakephp,gmponos/cakephp,ionas/cakephp,petteyg/cakephp,michaelze/cakephp,ndm2/cakephp,petteyg/cakephp,jjj117/cakephp,CakeDC/cakephp,tgr0ss/cakephp,cakephp/cakephp,yinhe007/cakephp,thinkingmedia/cakephp,Balachan27/cakephp,CakeDC/cakephp,CVO-Technologies/cakephp,burriko/cakephp,michaelze/cakephp,kumamidori/cakephp,thinkingmedia/cakephp,Balachan27/cakephp,cakephp-fr/cakephp,CVO-Technologies/cakephp,akintoey/cakephp,yinhe007/cakephp,dkarvounaris/cakephp,elboletaire/cakephp,ADmad/cakephp,ndm2/cakephp,kumamidori/cakephp,web-player/cakephp,mvdriel/cakephp,adopico/cakephp,HavokInspiration/cakephp,adopico/cakephp,ADmad/cakephp,mvdriel/cakephp,jjj117/cakephp,ADmad/cakephp,Phillaf/cakephp,eryw/cakephp,tisu2tisu/cakephp,ndm2/cakephp,garethellis36/cakephp,CVO-Technologies/cakephp,eryw/cakephp,jeffblack360/cakephp,dakota/cakephp,timhoeppner/cakephp,akintoey/cakephp,Phillaf/cakephp,cakephp/cakephp,justinyost/cakephp,tisu2tisu/cakephp,khoimt/cakephp-study,elboletaire/cakephp,tgr0ss/cakephp,tisu2tisu/cakephp,petteyg/cakephp,mvdriel/cakephp,HavokInspiration/cakephp,ADmad/cakephp,dkarvounaris/cakephp,justinyost/cakephp,dakota/cakephp,jjj117/cakephp,bravo-kernel/cakephp,jerems02/cakephp,CakeDC/cakephp,Balachan27/cakephp,elboletaire/cakephp,eryw/cakephp,jeffblack360/cakephp,tgr0ss/cakephp,timhoeppner/cakephp,web-player/cakephp,akintoey/cakephp,michaelze/cakephp,petteyg/cakephp,yinhe007/cakephp,dakota/cakephp,jeffblack360/cakephp,justinyost/cakephp,erikfig/cakephp,nrother/cakephp