在PHP中过滤特定字符串

Question

是$ var ="UseCountry = 1 UseCountryDefault = 1 UseState = 1 UseStateDefault = 1 UseLocality = 1 UseLocalityDefault = 1 cantidad_productos = 5 expireDays = 5 apikey = ABQIAAAAFHktBEXrHnX108wOdzd3aBTupK1kJuoJNBHuh0laPBvYXhjzZxR0qkeXcGC_0Dxf4UMhkR7ZNb04dQ DISTANCIA = 15 AutoCoord = 1 user_add_locality = 0 SaveContactForm = 0 ShowVoteRating = 0 Listlayout = 0 WidthThumbs = 100 HeightThumbs = 75 WidthImage = 640 HeightImage = 480 ShowImagesSystem = 1 ShowOrderBy = 0 ShowOrderByDefault = 0 ShowOrderDefault = DESC SimbolPrice = $ PositionPrice = 0 FormatPrice = 0 ShowLogoAgent = 1 ShowReferenceInList = 1 ShowCategoryInList = 1 ShowTypeInList = 1 ShowAddressInList = 1 ShowContactLink = 1 ShowMapLink = 1 ShowAddShortListLink = 1 ShowViewPropertiesAgentLink = 1 ThumbsInAccordion = 5WidthThumbsAccordion = 100 HeightThumbsAccordion = 75 ShowFeaturesInList = 1 ShowAllParentCategory = 0 AmountPanel = AmountForRegistered = 5 RegisteredAutoPublish = 1 AmountForAuthor = 5 AmountForEditor = 5 AmountForPublisher = 5 AmountForManager = 5 AmountForAdministrator = 5 AutoPublish = 1 MailAdminPublish = 1 DetailLayout = 0 ActivarTabs = 0 ActivarDescripcion = 1 ActivarDetails = 1 ActivarVideo = 1 ActivarPanoramica = 1 ActivarContactar = 1 ContactMailFormat = 1 ActivarReservas = 1 ActivarMapa = 1 ShowImagesSystemDetail = 1 WidthThumbsDetail = 120 HeightThumbsDetail = 90 idCountryDefault = 1 idStateDefault = 1 ms_country = 1 ms_state = 1 ms_locality = 1 ms_category = 1 ms_Subcategory = 1 ms_type = 1 ms_price = 1 ms_bedrooms = 1 ms_bathrooms = 1 ms_parking = 1ShowTextSearch = 1 minprice = maxprice = ms_catradius = 1 idcatradius1 = idcatradius2 = ShowTotalResult = 1 md_country = 1 md_state = 1 md_locality = 1 md_category = 1 md_type = 1 showComments = 0 useComment2 = 0 useComment3 = 0 useComment4 = 0 useComment5 = 0 AmountMonthsCalendar = 3 StartYearCalendar = 2009 StartMonthCalendar = 1 PeriodOnlyWeeks = 0 PeriodAmount = 3 PeriodStartDay = 1 apikey = ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ";

在那个字符串中我只想要"api==ABQIAAAAJ879Hg7OSEKVrRKc2YHjixSmyv5A3ewe40XW2YiIN-ybtu7KLRQiVUIEW3WsL8vOtIeTFIVUXDOAcQ"; plz引导我正确;

Answer 1

编辑

正如Shamittomar指出的那样,parse_str不适用于这种情况,在下面发布了正确的正则表达式. 鉴于这似乎是一个QUERY STRING,使用PHP提供的parse_str()函数.

UPDATE

如果你想使用preg_match()作为powertieke指出的正则表达式:

preg_match('/apikey=(.*)/', $var, $matches);
echo $matches[1];

应该做的伎俩.