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<?php $xml = '<?xml version="1.0" encoding="UTF-8"?> <Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" xmlns:ccts="urn:oasis:names:specification:ubl:schema:xsd:CoreComponentParameters-2" xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" xmlns:qdt="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2" xmlns:stat="urn:oasis:names:specification:ubl:schema:xsd:DocumentStatusCode-1.0" xmlns:udt="urn:un:unece:uncefact:data:draft:UnqualifiedDataTypesSchemaModule:2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> </Invoice>'; $invoiceXml = new \DOMDocument(); $invoiceXml->loadXml($xml); $invoiceXPath = new \DOMXPath($invoiceXml); $invoiceXPath->registerNamespace('peehee', 'urn:oasis:names:specification:ubl:schema:xsd:Invoice-2'); $textNode = $invoiceXPath->query('//peehee:Invoice'); var_dump($textNode->length);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6BeWB
function name:  (null)
number of ops:  24
compiled vars:  !0 = $xml, !1 = $invoiceXml, !2 = $invoiceXPath, !3 = $textNode
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%3C%3Fxml+version%3D%221.0%22+encoding%3D%22UTF-8%22%3F%3E%0A%3CInvoice+xmlns%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3AInvoice-2%22+xmlns%3Acac%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3ACommonAggregateComponents-2%22+xmlns%3Acbc%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3ACommonBasicComponents-2%22+xmlns%3Accts%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3ACoreComponentParameters-2%22+xmlns%3Aext%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3ACommonExtensionComponents-2%22+xmlns%3Aqdt%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3AQualifiedDatatypes-2%22+xmlns%3Astat%3D%22urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3ADocumentStatusCode-1.0%22+xmlns%3Audt%3D%22urn%3Aun%3Aunece%3Auncefact%3Adata%3Adraft%3AUnqualifiedDataTypesSchemaModule%3A2%22+xmlns%3Axsi%3D%22http%3A%2F%2Fwww.w3.org%2F2001%2FXMLSchema-instance%22%3E%0A%3C%2FInvoice%3E'
    7     1        NEW                                              $5      'DOMDocument'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !1, $5
    8     4        INIT_METHOD_CALL                                         !1, 'loadXml'
          5        SEND_VAR_EX                                              !0
          6        DO_FCALL                                      0          
   10     7        NEW                                              $9      'DOMXPath'
          8        SEND_VAR_EX                                              !1
          9        DO_FCALL                                      0          
         10        ASSIGN                                                   !2, $9
   11    11        INIT_METHOD_CALL                                         !2, 'registerNamespace'
         12        SEND_VAL_EX                                              'peehee'
         13        SEND_VAL_EX                                              'urn%3Aoasis%3Anames%3Aspecification%3Aubl%3Aschema%3Axsd%3AInvoice-2'
         14        DO_FCALL                                      0          
   12    15        INIT_METHOD_CALL                                         !2, 'query'
         16        SEND_VAL_EX                                              '%2F%2Fpeehee%3AInvoice'
         17        DO_FCALL                                      0  $13     
         18        ASSIGN                                                   !3, $13
   14    19        INIT_FCALL                                               'var_dump'
         20        FETCH_OBJ_R                                      ~15     !3, 'length'
         21        SEND_VAL                                                 ~15
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

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