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php - 获取 XML 变量

问题描述

我需要能够从 XML 中检索一个变量，它会告诉我一个属性是否对宠物友好。目前它似乎没有返回正确的数据，因为它嵌套在一个变量中，我正在努力检索它（我在 XML 和 PHP 类方面有点新手）

这是我正在使用的 XML 的相关位：

      <property>
     <propertycode>####</propertycode><lastupdate>28/08/2019 11:56:52</lastupdate><enabled>1</enabled>
        <propertyname>Cottage sleeps 6, Sunday changeover, pet friendly</propertyname><longitude>0</longitude>
       <latitude>0</latitude><sleeps adults="6" children="2" infants="1">6</sleeps><clientcode>
       </clientcode><ownerid>####</ownerid><prices>
      </prices><price/>
      <siteid>####</siteid>
      <propertygroup>Cottage sleeps 6, Sunday changeover, pet friendly   </propertygroup>
     <groupID>####</groupID><groupdisplay>grouped</groupdisplay>    
     <randOrder>242495955</randOrder><propertytown></propertytown>   
     <country>United Kingdom</country><countryiso>GB</countryiso> 
     <dateadded>2016-08-02</dateadded><managerID>0</managerID>  <managername/><manageremail/><manageraddress/><managerpostcode/><managertelephone/><managertelephonealt/><managertelephonehome/><managertelephonemobile/>
      <nobooking>0</nobooking><regionname/><regionname1/><regionname2/><regionname3/><regionname4/><typename typeID="0"></typename>
<propertyurl/><propertyaddress></propertyaddress><propertypostcode/><propertystars>0</propertystars> 
<bedrooms_new>2</bedrooms_new><bathrooms_new>2</bathrooms_new><showcapacity>1</showcapacity>
<capacitynotes>1 kingsize bedroom, 1 twin bedroom + pull down double bed in lounge. Maximum occupancy 6 adults/children plus travel cot</capacitynotes>
<maxprice currency="GBP" EUR="958.27" USD="1057.88" GBP="850.00">850.00</maxprice><minprice currency="GBP" EUR="710.25" USD="784.07" GBP="630.00">630.00</minprice><mindaily currency="GBP" EUR="388.95" USD="429.37" GBP="345.00">345.00</mindaily> 
<shortdescription>------------
</shortdescription>
<cottageweblocation></cottageweblocation>
<seconddescription></seconddescription><subcaption></subcaption><metatitle></metatitle><metadescription></metadescription><metakeywords></metakeywords><changeover>Sunday</changeover><changeovernotes/><changeovernotes_html/><highlightday>Sunday</highlightday><latediscount>0.00</latediscount><lowoccupancydiscount>0.00</lowoccupancydiscount><multiweeksdiscount>0.00</multiweeksdiscount><seasonaldiscount>0.00</seasonaldiscount><daysdiscount>0.00</daysdiscount><earlydiscount>0.00</earlydiscount><lateavaildiscounts days="" rate="" type=""></lateavaildiscounts><lowoccupancy></lowoccupancy><multiweeks></multiweeks><seasonaldiscountdesc></seasonaldiscountdesc><daysdiscountdesc></daysdiscountdesc><earlydiscountdesc></earlydiscountdesc><discountnotes>       </discountnotes><discounts>
     </discounts><photos><photocount>3</photocount></photos>
<propertyvariables><propertyvariable id="variableID61839">
       <variable id="61839" order="0">No. bedrooms</variable>           <variable_trans id="61839" langID=""></variable_trans>
         <variablevalue>2</variablevalue><variabledescription>
</variabledescription><variablephoto/><variablethumb/><varcatname heading="0" varcatID="1">No. bedrooms</varcatname><varcatname_trans heading="0" varcatID="1" langID=""></varcatname_trans></propertyvariable>
        <propertyvariable id="variableID61849">
        <variable id="61849" order="0">Pet friendly</variable>
         <variable_trans id="61849" langID=""></variable_trans>  
<variablevalue>1</variablevalue>
     <variabledescription></variabledescription>
     <variablephoto/><variablethumb/>
     <varcatname heading="0" varcatID="1">Pet friendly</varcatname>
     <varcatname_trans heading="0" varcatID="1" langID="">        
    </varcatname_trans>
</propertyvariable></propertyvariables>
</property>

这是以前为我编写的 PHP，但它不起作用：

$properties = $xml->property;

$variables = $property->property->variables;
$petfriendly = false;

if($property->property->variables->varcat[1]){
$petfriendly =   (bool)$property->property->variables->varcat[1]->varcatitems->varcatitem->variable->attributes()->bool;
}
    $property_meta['petfriendly'] = ($petfriendly ? 'yes' : 'no');

标签： phpxml

解决方案

使用 SimpleXML，您可以轻松地使用 XPath 来检查 Pet Friendly 变量（假设这是一个常量——我希望它是）。然后，如果该值未找到或为 0，则将其设置为，no否则将其设置为yes...

$properties = $xml->property;
$petfriendly = $properties->xpath("//propertyvariable[@id='variableID61849']/variablevalue");
if ( count($petfriendly) == 0 || $petfriendly[0] == '0' ){
    $property_meta['petfriendly'] = 'no';
}
else {
    $property_meta['petfriendly'] = 'yes';
}

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