使用DOMXPath调用PHP中的XML数据

时间：2018-10-01 03:03:12

标签： php xml xpath domdocument domxpath

由于我的XML输出中带有foreach标签，因此无法通过VehicleDescription循环提取XML数据。该标记中的属性随应用程序发出的每个不同请求而变化。因此，我不能简单地将VehicleDescription及其所有属性（Country =“ US” language =“ en” modelYear =“ 2015” bestMakeName =“ Audi” bestModelName =“ A4” bestStyleName =“ 4dr Sdn Auto quattro xPath的2.0T Premium” bestTrimName =“ Premium”），它需要保持可变，因为通过此代码处理了不同的请求。

到目前为止，我的代码如下所示。如何编辑它，以便它通过MECHANICAL循环调用foreach数据？

<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="utf-8">
<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>

这是XML：

<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>

非常感谢！

1 个答案:

答案 0 :(得分：0)

问题是VehicleDescription元素上有一个名称空间。您需要register the namespace，然后在XPath查询中引用它。试试看：

<?php
$xml = file_get_contents('note.xml');

$dom = new DOMDocument();
$dom->loadXML($xml);

$xpath = new DOMXPath($dom);
$xpath->registerNamespace("x", "urn:description7b.services.chrome.com");
$result = $xpath->query('//x:standard/x:header[ . = "MECHANICAL"]/../x:description');

$mecharray = [];

foreach ($result as $mechdescription)
{
    $mecharray[] = $mechdescription->nodeValue;
}

foreach ($mecharray as $mechanicaldescription)
{
    echo $mechanicaldescription . "\n\n";
}
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