как читать несколько xml-содержимого в файле, используя php

Это не допустимый XML-файл. Он выглядит как два файла в одном, но даже тогда он недействителен. Предполагая, что это два отдельных файла, вы можете сначала попробовать «убрать» их. Предполагая, что $ xml – это строка, содержащая содержимое xml:

 $xml = tidy_repair_string($xml, array( 'output-xml' => true, 'input-xml' => true )); 

Тогда вы можете использовать SimpleXml на нем:

 $xml = new SimpleXmlElement($xml); 

Я знаю, откуда появился этот XML-файл, и я нахожу довольно странным, что Google предоставит некоторый недопустимый XML (если только они просто не размещают этот файл, который они получили откуда-то еще). Это предложение для его синтаксического анализа сработало для меня: как разобрать XML-файл с несколькими объявлениями xml с помощью PHP? (Конкатенация нескольких файлов XML)

Этот файл содержит последовательность XML-документов, объединенных друг с другом. Вам необходимо зарегистрировать потоковый конвертер PHP, который прозрачно делит файл для вас, тогда вы можете обрабатывать каждый документ по отдельности и даже потоковым способом. Пример:

 stream_wrapper_register('xmlseq', 'XMLSequenceStream'); $path = "xmlseq://zip://ipg140107.zip#ipg140107.xml"; while (XMLSequenceStream::notAtEndOfSequence($path)) { $reader = new XMLReader(); $reader->open($path); // just consume the whole document while ($reader::next()) { XMLReaderNode::dump($reader); } } XMLSequenceStream::clean(); 

Эта потоковая оболочка является частью библиотеки XMLReaderIterator и работает также с SimpleXMLElement или DOMDocument, хотя для больших файлов XMLReader лучше подходит.

Для файла, который я привел в моем примере ( http://storage.googleapis.com/patents/grant_full_text/2014/ipg140107.zip, из https://www.google.com/googlebooks/uspto-patents-grants-text .html ), общие элементы подсчета элементов-элементов различных деревьев в этой последовательности, например:

 \-us-patent-grant (473) |-us-bibliographic-data-grant (473) | |-publication-reference (473) | | \-document-id (473) | | |-country (473) | | |-doc-number (473) | | |-kind (473) | | \-date (473) | |-application-reference (473) | | \-document-id (473) | | |-country (473) | | |-doc-number (473) | | \-date (473) | |-us-application-series-code (473) | |-us-term-of-grant (470) | | |-length-of-grant (450) | | |-disclaimer (18) | | | \-text (18) | | \-us-term-extension (20) | |-classification-locarno (450) | | |-edition (450) | | \-main-classification (450) | |-classification-national (473) | | |-country (473) | | |-main-classification (473) | | \-further-classification (143) | |-invention-title (473) | | \-i (12) | |-us-references-cited (458) | | \-us-citation (11000) | | |-patcit (10265) | | | \-document-id (10265) | | | |-country (10265) | | | |-doc-number (10265) | | | |-kind (9884) | | | |-name (9811) | | | \-date (10264) | | |-category (10999) | | |-classification-national (6309) | | | |-country (6309) | | | \-main-classification (6309) | | |-nplcit (735) | | | \-othercit (735) | | | |-sub (281) | | | |-i (7) | | | \-sup (1) | | \-classification-cpc-text (1) | |-number-of-claims (472) | |-us-exemplary-claim (472) | |-us-field-of-classification-search (472) | | \-classification-national (8991) | | |-country (8991) | | |-main-classification (8991) | | \-additional-info (1205) | |-figures (472) | | |-number-of-drawing-sheets (472) | | \-number-of-figures (472) | |-us-parties (472) | | |-us-applicants (472) | | | \-us-applicant (765) | | | |-addressbook (765) | | | | |-last-name (573) | | | | |-first-name (573) | | | | |-address (765) | | | | | |-city (765) | | | | | |-country (765) | | | | | \-state (423) | | | | \-orgname (192) | | | \-residence (765) | | | \-country (765) | | |-inventors (472) | | | \-inventor (969) | | | \-addressbook (969) | | | |-last-name (969) | | | |-first-name (969) | | | \-address (969) | | | |-city (969) | | | |-country (969) | | | \-state (519) | | \-agents (429) | | \-agent (500) | | \-addressbook (500) | | |-orgname (361) | | |-address (500) | | | \-country (500) | | |-last-name (139) | | \-first-name (139) | |-assignees (385) | | \-assignee (391) | | |-addressbook (390) | | | |-orgname (386) | | | |-role (390) | | | |-address (390) | | | | |-city (355) | | | | |-country (390) | | | | \-state (192) | | | |-last-name (4) | | | \-first-name (4) | | |-orgname (1) | | \-role (1) | |-examiners (472) | | |-primary-examiner (472) | | | |-last-name (472) | | | |-first-name (472) | | | \-department (472) | | \-assistant-examiner (65) | | |-last-name (65) | | \-first-name (65) | |-us-related-documents (65) | | |-continuation-in-part (16) | | | \-relation (16) | | | |-parent-doc (16) | | | | |-document-id (16) | | | | | |-country (16) | | | | | |-doc-number (16) | | | | | \-date (16) | | | | |-parent-status (11) | | | | \-parent-grant-document (5) | | | | \-document-id (5) | | | | |-country (5) | | | | |-doc-number (5) | | | | \-date (2) | | | \-child-doc (16) | | | \-document-id (16) | | | |-country (16) | | | \-doc-number (16) | | |-continuation (21) | | | \-relation (21) | | | |-parent-doc (21) | | | | |-document-id (21) | | | | | |-country (21) | | | | | |-doc-number (21) | | | | | \-date (21) | | | | |-parent-status (16) | | | | \-parent-grant-document (5) | | | | \-document-id (5) | | | | |-country (5) | | | | |-doc-number (5) | | | | \-date (2) | | | \-child-doc (21) | | | \-document-id (21) | | | |-country (21) | | | \-doc-number (21) | | |-division (32) | | | \-relation (32) | | | |-parent-doc (32) | | | | |-document-id (32) | | | | | |-country (32) | | | | | |-doc-number (32) | | | | | \-date (32) | | | | |-parent-grant-document (24) | | | | | \-document-id (24) | | | | | |-country (24) | | | | | |-doc-number (24) | | | | | \-date (1) | | | | \-parent-status (8) | | | \-child-doc (32) | | | \-document-id (32) | | | |-country (32) | | | \-doc-number (32) | | \-related-publication (9) | | \-document-id (9) | | |-country (9) | | |-doc-number (9) | | |-kind (9) | | \-date (9) | |-priority-claims (140) | | \-priority-claim (182) | | |-country (182) | | |-doc-number (182) | | \-date (182) | |-us-sir-flag (1) | |-classifications-ipcr (23) | | \-classification-ipcr (24) | | |-ipc-version-indicator (24) | | | \-date (24) | | |-classification-level (24) | | |-section (24) | | |-class (24) | | |-subclass (24) | | |-main-group (24) | | |-subgroup (24) | | |-symbol-position (24) | | |-classification-value (24) | | |-action-date (24) | | | \-date (24) | | |-generating-office (24) | | | \-country (24) | | |-classification-status (24) | | \-classification-data-source (24) | |-us-botanic (21) | | |-latin-name (21) | | \-variety (21) | \-classifications-cpc (1) | \-main-cpc (1) | \-classification-cpc (1) | |-cpc-version-indicator (1) | | \-date (1) | |-section (1) | |-class (1) | |-subclass (1) | |-main-group (1) | |-subgroup (1) | |-symbol-position (1) | |-classification-value (1) | |-action-date (1) | | \-date (1) | |-generating-office (1) | | \-country (1) | |-classification-status (1) | |-classification-data-source (1) | \-scheme-origination-code (1) |-drawings (472) | \-figure (3033) | \-img (3033) |-description (472) | |-description-of-drawings (472) | | |-p (3955) | | | |-figref (4478) | | | |-b (86) | | | \-i (6) | | \-heading (22) | |-heading (162) | \-p (340) | |-figref (15) | |-b (250) | |-i (146) | |-ul (96) | | \-li (444) | | |-ul (215) | | | \-li (273) | | | |-ul (199) | | | | \-li (1192) | | | | |-i (1219) | | | | |-b (1) | | | | |-sup (10) | | | | \-sub (2) | | | \-i (11) | | |-sup (2) | | \-i (26) | |-tables (15) | | \-table (15) | | \-tgroup (49) | | |-colspec (175) | | |-thead (15) | | | \-row (27) | | | \-entry (51) | | \-tbody (49) | | \-row (291) | | \-entry (997) | | \-sup (28) | \-sup (2) |-us-claim-statement (472) |-claims (472) | \-claim (476) | \-claim-text (476) | |-figref (1) | |-claim-text (5) | |-claim-ref (4) | \-i (15) \-abstract (22) \-p (22) |-i (27) \-ul (2) \-li (2) \-ul (2) \-li (11)