我需要知道$paymentDate(31/12/2010)在$contractDateBegin(01/01/2001)和$contractDateEnd(01/01/2012)dd/mm/yyyy格式! 最佳答案 从PHP5.3开始:$paymentDate=DateTime::createFromFormat('d/m/Y','31/12/2010');$contractDateBegin=DateTime::createFromFormat('d/m/Y','01/01/2001');$contractDateEnd=Date