Maison >développement back-end >tutoriel php >如何快捷的取出数组里的值?
类似这样:
<code>Array ( [tag] => PubmedArticle [value] => Array ( [0] => Array ( [tag] => MedlineCitation [value] => Array ( [0] => Array ( [tag] => PMID [value] => 25864520 [attributes] => Array ( [Version] => 1 ) ) [1] => Array ( [tag] => DateCreated [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 13 ) ) ) [2] => Array ( [tag] => DateRevised [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) ) ) [3] => Array ( [tag] => Article [value] => Array ( [0] => Array ( [tag] => Journal [value] => Array ( [0] => Array ( [tag] => ISSN [value] => 1364-548X [attributes] => Array ( [IssnType] => Electronic ) ) [1] => Array ( [tag] => JournalIssue [value] => Array ( [0] => Array ( [tag] => PubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => Apr ) [2] => Array ( [tag] => Day [value] => 13 ) ) ) ) [attributes] => Array ( [CitedMedium] => Internet ) ) [2] => Array ( [tag] => Title [value] => Chemical communications (Cambridge, England) ) [3] => Array ( [tag] => ISOAbbreviation [value] => Chem. Commun. (Camb.) ) ) ) [1] => Array ( [tag] => ArticleTitle [value] => Anisotropic particles templated by Janus emulsion. ) [2] => Array ( [tag] => Pagination [value] => Array ( [0] => Array ( [tag] => MedlinePgn [value] => ) ) ) [3] => Array ( [tag] => Abstract [value] => Array ( [0] => Array ( [tag] => AbstractText [value] => Anisotropic particles, with morphology from crescent to moon shape and size from micrometer to nanometer scale, are fabricated in batch scale with Janus emulsion as template. The strategy is also useful in the synthesis of Janus particles with chemically distinct hemispheres. [attributes] => Array ( [NlmCategory] => UNASSIGNED ) ) ) ) [4] => Array ( [tag] => AuthorList [value] => Array ( [0] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Ge ) [1] => Array ( [tag] => ForeName [value] => Lingling ) [2] => Array ( [tag] => Initials [value] => L ) [3] => Array ( [tag] => AffiliationInfo [value] => Array ( [0] => Array ( [tag] => Affiliation [value] => School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, China. llge@yzu.edu.cn guorong@yzu.edu.cn. ) ) ) ) ) [1] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Lu ) [1] => Array ( [tag] => ForeName [value] => Shuhui ) [2] => Array ( [tag] => Initials [value] => S ) ) ) [2] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Han ) [1] => Array ( [tag] => ForeName [value] => Jie ) [2] => Array ( [tag] => Initials [value] => J ) ) ) [3] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Guo ) [1] => Array ( [tag] => ForeName [value] => Rong ) [2] => Array ( [tag] => Initials [value] => R ) ) ) ) ) [5] => Array ( [tag] => Language [value] => ENG ) [6] => Array ( [tag] => PublicationTypeList [value] => Array ( [0] => Array ( [tag] => PublicationType [value] => JOURNAL ARTICLE [attributes] => Array ( [UI] => ) ) ) ) [7] => Array ( [tag] => ArticleDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 13 ) ) [attributes] => Array ( [DateType] => Electronic ) ) ) [attributes] => Array ( [PubModel] => Print-Electronic ) ) [4] => Array ( [tag] => MedlineJournalInfo [value] => Array ( [0] => Array ( [tag] => MedlineTA [value] => Chem Commun (Camb) ) [1] => Array ( [tag] => NlmUniqueID [value] => 9610838 ) [2] => Array ( [tag] => ISSNLinking [value] => 1359-7345 ) ) ) ) [attributes] => Array ( [Status] => Publisher [Owner] => NLM ) ) [1] => Array ( [tag] => PubmedData [value] => Array ( [0] => Array ( [tag] => History [value] => Array ( [0] => Array ( [tag] => PubMedPubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) [3] => Array ( [tag] => Hour [value] => 6 ) [4] => Array ( [tag] => Minute [value] => 0 ) ) [attributes] => Array ( [PubStatus] => entrez ) ) [1] => Array ( [tag] => PubMedPubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) [3] => Array ( [tag] => Hour [value] => 6 ) [4] => Array ( [tag] => Minute [value] => 0 ) ) [attributes] => Array ( [PubStatus] => pubmed ) ) [2] => Array ( [tag] => PubMedPubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) [3] => Array ( [tag] => Hour [value] => 6 ) [4] => Array ( [tag] => Minute [value] => 0 ) ) [attributes] => Array ( [PubStatus] => medline ) ) ) ) [1] => Array ( [tag] => PublicationStatus [value] => aheadofprint ) [2] => Array ( [tag] => ArticleIdList [value] => Array ( [0] => Array ( [tag] => ArticleId [value] => 10.1039/c5cc00935a [attributes] => Array ( [IdType] => doi ) ) [1] => Array ( [tag] => ArticleId [value] => 25864520 [attributes] => Array ( [IdType] => pubmed ) ) ) ) ) ) ) ) </code>
类似这样:
<code>Array ( [tag] => PubmedArticle [value] => Array ( [0] => Array ( [tag] => MedlineCitation [value] => Array ( [0] => Array ( [tag] => PMID [value] => 25864520 [attributes] => Array ( [Version] => 1 ) ) [1] => Array ( [tag] => DateCreated [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 13 ) ) ) [2] => Array ( [tag] => DateRevised [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) ) ) [3] => Array ( [tag] => Article [value] => Array ( [0] => Array ( [tag] => Journal [value] => Array ( [0] => Array ( [tag] => ISSN [value] => 1364-548X [attributes] => Array ( [IssnType] => Electronic ) ) [1] => Array ( [tag] => JournalIssue [value] => Array ( [0] => Array ( [tag] => PubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => Apr ) [2] => Array ( [tag] => Day [value] => 13 ) ) ) ) [attributes] => Array ( [CitedMedium] => Internet ) ) [2] => Array ( [tag] => Title [value] => Chemical communications (Cambridge, England) ) [3] => Array ( [tag] => ISOAbbreviation [value] => Chem. Commun. (Camb.) ) ) ) [1] => Array ( [tag] => ArticleTitle [value] => Anisotropic particles templated by Janus emulsion. ) [2] => Array ( [tag] => Pagination [value] => Array ( [0] => Array ( [tag] => MedlinePgn [value] => ) ) ) [3] => Array ( [tag] => Abstract [value] => Array ( [0] => Array ( [tag] => AbstractText [value] => Anisotropic particles, with morphology from crescent to moon shape and size from micrometer to nanometer scale, are fabricated in batch scale with Janus emulsion as template. The strategy is also useful in the synthesis of Janus particles with chemically distinct hemispheres. [attributes] => Array ( [NlmCategory] => UNASSIGNED ) ) ) ) [4] => Array ( [tag] => AuthorList [value] => Array ( [0] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Ge ) [1] => Array ( [tag] => ForeName [value] => Lingling ) [2] => Array ( [tag] => Initials [value] => L ) [3] => Array ( [tag] => AffiliationInfo [value] => Array ( [0] => Array ( [tag] => Affiliation [value] => School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, China. llge@yzu.edu.cn guorong@yzu.edu.cn. ) ) ) ) ) [1] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Lu ) [1] => Array ( [tag] => ForeName [value] => Shuhui ) [2] => Array ( [tag] => Initials [value] => S ) ) ) [2] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Han ) [1] => Array ( [tag] => ForeName [value] => Jie ) [2] => Array ( [tag] => Initials [value] => J ) ) ) [3] => Array ( [tag] => Author [value] => Array ( [0] => Array ( [tag] => LastName [value] => Guo ) [1] => Array ( [tag] => ForeName [value] => Rong ) [2] => Array ( [tag] => Initials [value] => R ) ) ) ) ) [5] => Array ( [tag] => Language [value] => ENG ) [6] => Array ( [tag] => PublicationTypeList [value] => Array ( [0] => Array ( [tag] => PublicationType [value] => JOURNAL ARTICLE [attributes] => Array ( [UI] => ) ) ) ) [7] => Array ( [tag] => ArticleDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 13 ) ) [attributes] => Array ( [DateType] => Electronic ) ) ) [attributes] => Array ( [PubModel] => Print-Electronic ) ) [4] => Array ( [tag] => MedlineJournalInfo [value] => Array ( [0] => Array ( [tag] => MedlineTA [value] => Chem Commun (Camb) ) [1] => Array ( [tag] => NlmUniqueID [value] => 9610838 ) [2] => Array ( [tag] => ISSNLinking [value] => 1359-7345 ) ) ) ) [attributes] => Array ( [Status] => Publisher [Owner] => NLM ) ) [1] => Array ( [tag] => PubmedData [value] => Array ( [0] => Array ( [tag] => History [value] => Array ( [0] => Array ( [tag] => PubMedPubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 ) [1] => Array ( [tag] => Month [value] => 4 ) [2] => Array ( [tag] => Day [value] => 14 ) [3] => Array ( [tag] => Hour [value] => 6 ) [4] => Array ( [tag] => Minute [value] => 0 ) ) [attributes] => Array ( [PubStatus] => entrez ) ) [1] => Array ( [tag] => PubMedPubDate [value] => Array ( [0] => Array ( [tag] => Year [value] => 2015 </code>