fix issue #7
fix issue #7

xiaosl/phptrace,three2one/phptrace,three2one/phptrace,narlian/phptrace,Qihoo360/phptrace,three2one/phptrace,oikomi/phptrace,fengshao0907/phptrace,chenwenbin928/phptrace,kmiku7/phptrace,xiaosl/phptrace,xiaosl/phptrace,narlian/phptrace,skyworker/phptrace,kmiku7/phptrace,tempbottle/phptrace,narlian/phptrace,monque/phptrace,chenwenbin928/phptrace,tempbottle/phptrace,nihaibao/phptrace,outman/phptrace,silkCut/phptrace,kmiku7/phptrace,nihaibao/phptrace,chenwenbin928/phptrace,Qihoo360/phptrace,skyworker/phptrace,fengshao0907/phptrace,skyworker/phptrace,fengshao0907/phptrace,outman/phptrace,chenwenbin928/phptrace,monque/phptrace,nihaibao/phptrace,oikomi/phptrace,skyworker/phptrace,xiaosl/phptrace,oikomi/phptrace,three2one/phptrace,silkCut/phptrace,tempbottle/phptrace,outman/phptrace,narlian/phptrace,kmiku7/phptrace,fengshao0907/phptrace,Qihoo360/phptrace,tempbottle/phptrace,silkCut/phptrace,nihaibao/phptrace,outman/phptrace,oikomi/phptrace,monque/phptrace