我獲取的數(shù)據(jù)是這樣的這是xml數(shù)據(jù) <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Header/> <soapenv:Body> <p237:getNewSampleSerialNumsOutput xmlns:p237="http://www.cat.com/sos/2008/07/15/EquipmentService/"> <Equipment> <p463:serialNumber xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15">ZBD11674</p463:serialNumber> <p463:make xsi:nil="true" xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15"/> </Equipment> <Equipment> <p463:serialNumber xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15">ZBF11179</p463:serialNumber> <p463:make xsi:nil="true" xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15"/> </Equipment> <Equipment> <p463:serialNumber xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15">ZBF11507</p463:serialNumber> <p463:make xsi:nil="true" xmlns:p463="http://www.cat.com/dds/Equipment/2008/07/15"/> </Equipment> </p237:getNewSampleSerialNumsOutput> </soapenv:Body> </soapenv:Envelope> 然后我想要根據(jù)標簽Equipment把他們截取成一個數(shù)組（內容和標簽一起獲?。緦嵲诓恍胁荒脴撕炓残?，我自己加上去】 然后代碼是這樣 preg_match_all('/<Equipment>.*<\/Equipment>/',$res,$a); 但是獲取的卻是截取第一個<Equipment>到最后一個</Equipment>，中間的區(qū)域都不去識別 請問有什么優(yōu)化的方法嗎