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php之使用 XPath 从 XML 文档中提取特定于标签的数据

2025年05月04日18arxive

我正在尝试提取 <description>使用 DOMDocument 和 XPath、domXpath 标记来自 XML 文档的数据。我只想要<description>以标签 <header id="1236">MECHANICAL</header> 开头的数据.到目前为止，我已将其创建为我的 xPath 流程；但是调用数据一直不成功:

($xpath->query('//VehicleDescription/standard[header="MECHANICAL"]/description')

我相信问题在于 VehicleDescription .有想法该怎么解决这个吗？请记住，这是一个肥皂结果，所以 VehicleDescription并且该事项的所有其他数据将随着每个请求而改变。 
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/"> 
 <S:Body> 
  <VehicleDescription country="US" language="en" modelYear="2015" bestMakeName="Audi" bestModelName="A4" bestStyleName="4dr Sdn Auto quattro 2.0T Premium" bestTrimName="Premium" xmlns="urn:description7b.services.chrome.com"> 
 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Engine: 2.0L DOHC 4-Cylinder TFSI -inc: Audi valvelift system</description> 
    <category id="1048"/> 
    <category id="1054"/> 
    <category id="1213"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Transmission: 8-Speed Automatic w/Tiptronic -inc: sport program and manual shift mode</description> 
    <category id="1130"/> 
    <category id="1195"/> 
    <category id="1220"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Full-Time All-Wheel Drive</description> 
    <category id="1041"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Engine Oil Cooler</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>80-Amp/Hr Maintenance-Free Battery w/Run Down Protection</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>150 Amp Alternator</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Gas-Pressurized Shock Absorbers</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Front And Rear Anti-Roll Bars</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Electric Power-Assist Speed-Sensing Steering</description> 
    <category id="1084"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>16.1 Gal. Fuel Tank</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Single Stainless Steel Exhaust</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Multi-Link Front Suspension w/Coil Springs</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>Multi-Link Rear Suspension w/Coil Springs</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1236">MECHANICAL</header> 
    <description>4-Wheel Disc Brakes w/4-Wheel ABS, Front Vented Discs, Brake Assist, Hill Hold Control and Electric Parking Brake</description> 
    <category id="1018"/> 
    <category id="1020"/> 
    <category id="1228"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Wheels: 8.0J x 17" 10-Spoke-Star-Design</description> 
    <category id="1123"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Tires: P245/45R17 AS</description> 
    <category id="1092"/> 
    <category id="1097"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Wheels w/Silver Accents</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Steel Spare Wheel</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Compact Spare Tire Mounted Inside Under Cargo</description> 
    <category id="1098"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Clearcoat Paint</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Express Open/Close Sliding And Tilting Glass 1st Row Sunroof w/Sunshade</description> 
    <category id="1069"/> 
    <category id="1132"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Body-Colored Front Bumper</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Body-Colored Rear Bumper</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Rocker Panel Extensions</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Aluminum Side Windows Trim and Black Front Windshield Trim</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Body-Colored Door Handles</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Body-Colored Power Heated Side Mirrors w/Manual Folding and Turn Signal Indicator</description> 
    <category id="1064"/> 
    <category id="1065"/> 
    <category id="1174"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Fixed Rear Window w/Defroster</description> 
    <category id="1034"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Light Tinted Glass</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Speed Sensitive Rain Detecting Variable Intermittent Wipers w/Heated Jets</description> 
    <category id="1127"/> 
    <category id="1159"/> 
    <category id="1160"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Galvanized Steel/Aluminum Panels</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Black Grille w/Chrome Surround</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Trunk Rear Cargo Access</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Programmable Projector Beam High Intensity Low/High Beam Daytime Running Auto-Leveling Headlamps w/Washer and Delay-Off</description> 
    <category id="1061"/> 
    <category id="1168"/> 
    <category id="1169"/> 
    <category id="1313"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Front And Rear Fog Lamps</description> 
    <category id="1151"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Cornering Lights</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>Perimeter/Approach Lights</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1176">EXTERIOR</header> 
    <description>LED Brakelights</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="10689">ENTERTAINMENT</header> 
    <description>Radio: Audi Concert System w/1CD Player -inc: MP3 capable, AM/FM radio, auxiliary input jack, SD card slots w/32GB capacity for MP3 files, speed-dependent volume control, Audi MMI radio plus system for controlling infotainment/climate/car setup w/6.5" color screen, Audi music interface w/iPod integration w/1 cable for iPod connection, Audi 6-channel DSP extended 180 watt sound system w/10 speakers including subwoofer and SiriusXM satellite radio w/90-day trial subscription</description> 
    <category id="1014"/> 
    <category id="1017"/> 
    <category id="1149"/> 
    <category id="1150"/> 
    <category id="1230"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="10689">ENTERTAINMENT</header> 
    <description>Radio w/Clock and Steering Wheel Controls</description> 
    <category id="1161"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="10689">ENTERTAINMENT</header> 
    <description>Audio Theft Deterrent</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="10689">ENTERTAINMENT</header> 
    <description>Window Grid Diversity Antenna</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="10689">ENTERTAINMENT</header> 
    <description>Bluetooth Wireless Phone Connectivity</description> 
    <category id="1211"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Power Front Seats -inc: 8-way power front seats and 4-way power lumbar adjustment for driver</description> 
    <category id="1074"/> 
    <category id="1075"/> 
    <category id="1082"/> 
    <category id="1189"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Driver Seat</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Passenger Seat</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>60-40 Folding Bench Front Facing Fold Forward Seatback Rear Seat</description> 
    <category id="1076"/> 
    <category id="1304"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Manual Tilt/Telescoping Steering Column</description> 
    <category id="1087"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Gauges -inc: Speedometer, Odometer, Engine Coolant Temp, Tachometer, Oil Level, Trip Odometer and Trip Computer</description> 
    <category id="1203"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Power Rear Windows</description> 
    <category id="1126"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Leather Steering Wheel</description> 
    <category id="1192"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Front Cupholder</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Rear Cupholder</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Front Cigar Lighter(s)</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Ashtray</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Valet Function</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Power Fuel Flap Locking Type</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Remote Keyless Entry w/Integrated Key Transmitter, 4 Door Curb/Courtesy, Illuminated Entry and Panic Button</description> 
    <category id="1062"/> 
    <category id="1063"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Remote Releases -Inc: Power Cargo Access</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>HomeLink Garage Door Transmitter</description> 
    <category id="1204"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Cruise Control</description> 
    <category id="1033"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Dual Zone Front Automatic Air Conditioning</description> 
    <category id="1009"/> 
    <category id="1010"/> 
    <category id="1011"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Rear HVAC w/Separate Controls</description> 
    <category id="1011"/> 
    <category id="1012"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>HVAC -inc: Underseat Ducts and Console Ducts</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Illuminated Locking Glove Box</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Driver Foot Rest</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Interior Trim -inc: Aluminum Instrument Panel Insert, Aluminum Door Panel Insert, Aluminum Console Insert and Aluminum/Metal-Look Interior Accents</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Full Cloth Headliner</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Leatherette Door Trim Insert</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Leather Gear Shift Knob</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Leather Seating Surfaces</description> 
    <category id="1078"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Day-Night Rearview Mirror</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Driver And Passenger Visor Vanity Mirrors w/Driver And Passenger Illumination</description> 
    <category id="1175"/> 
    <category id="1176"/> 
    <category id="1177"/> 
    <category id="1178"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Full Floor Console w/Storage, Mini Overhead Console w/Storage and 3 12V DC Power Outlets</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Front And Rear Map Lights</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Fade-To-Off Interior Lighting</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Full Carpet Floor Covering -inc: Carpet Front And Rear Floor Mats</description> 
    <category id="1055"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Carpet Floor Trim and Carpet Trunk Lid/Rear Cargo Door Trim</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Cargo Space Lights</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>FOB Controls -inc: Trunk/Hatch/Tailgate, Windows and Sunroof/Convertible Roof</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Driver / Passenger And Rear Door Bins</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Power 1st Row Windows w/Front And Rear 1-Touch Up/Down</description> 
    <category id="1126"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Delayed Accessory Power</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Power Door Locks w/Autolock Feature</description> 
    <category id="1063"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Systems Monitor</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Redundant Digital Speedometer</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Trip Computer</description> 
    <category id="1203"/> 
    <styleId>369101</styleId> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Outside Temp Gauge</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Analog Display</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Manual Anti-Whiplash Adjustable Front Head Restraints and Manual Adjustable Rear Head Restraints</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Front Center Armrest and Rear Center Armrest w/Storage</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>2 Seatback Storage Pockets</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Perimeter Alarm</description> 
    <category id="1013"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Immobilizer III Engine Immobilizer</description> 
    <category id="1166"/> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>3 12V DC Power Outlets</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 <standard> 
    <header id="1220">INTERIOR</header> 
    <description>Air Filtration</description> 
    <styleId>369101</styleId> 
    <installed cause="BaseEquipment"/> 
 </standard> 
 
</VehicleDescription>

这是我的php: 
<!DOCTYPE html> 
 <html lang="en"> 
 
 <head> 
 <title>Dynamically Generate Select Dropdowns 2</title> 
 <style type="text/css"> 
   select {display: block;margin-left: auto;margin-right: auto;} 
 </style> 
 </head> 
 
 <body> 
 
   <?php 
 
     $xml = file_get_contents('note.xml'); 
     $dom = new DOMDocument(); 
     $dom->loadXML($xml); 
     $xpath = new domXpath($dom); 
 
     foreach ($xpath->query('//VehicleDescription/standard[header="MECHANICAL"]/description') as $mechdescription) { 
     $mecharray[] = $mechdescription->nodeValue ; 
     } 
 
     foreach ($mecharray as $mechanicaldescription){ 
     echo $mechanicaldescription ."\n\n"; 
     } 
  ?> 
 
 </body> 
 </html>

非常感谢你的帮助!

请您参考如下方法:

作为 <VehicleDescription> node 定义了它自己的默认命名空间(在 xmlns="urn:description7b.services.chrome.com" 中)，您需要注册此命名空间并将其用作 XPath 表达式的一部分...

$xpath = new DOMXPath($dom); 
$xpath->registerNamespace("def", "urn:description7b.services.chrome.com"); 
$mecharray = []; 
foreach ($xpath->query('//def:VehicleDescription/def:standard[def:header="MECHANICAL"]/def:description') as $mechdescription) { 
    $mecharray[] = $mechdescription->nodeValue ; 
}

我用 def作为命名空间前缀，但你可以使用任何你想要的，只要它在 XPath 表达式中是相同的。


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