PHP7环境下SOAP请求XML对象数组缺失及元素未生成问题咨询

Let’s break down your two SOAP problems and work through practical solutions to get your requests generating correctly again.

Problem 1: SOAP Request XML Doesn’t Include Object Arrays #

PHP 7’s SoapClient has subtle changes in how it serializes arrays compared to older PHP versions, especially when dealing with complex types defined in your WSDL. Here’s how to fix this:

1. Use SoapVar to Explicitly Define Array Types
   If your WSDL specifies an array type (like ArrayOfAdresType), you need to wrap your PHP array in a SoapVar to tell the SOAP client exactly what type it should serialize as. For example, if przesylkaBiznesowaType expects an array of adresType objects:

   // Create multiple adresType objects
   $adres1 = new adresType();
   $adres1->miejscowosc = "Gdynia";
   $adres1->kodPocztowy = "81-301";
   // ... set other required properties
   
   $adres2 = new adresType();
   $adres2->miejscowosc = "Warszawa";
   $adres2->kodPocztowy = "00-001";
   // ... set other required properties
   
   // Wrap the array in SoapVar, matching your WSDL's array type and namespace
   $adresArray = new SoapVar(
       [$adres1, $adres2],
       SOAP_ENC_ARRAY,
       'ArrayOfAdresType', // Replace with the exact array type name from your WSDL
       'http://your-wsdl-namespace' // Replace with your WSDL's target namespace
   );
   
   // Assign the wrapped array to your przesylkaBiznesowaType object
   $P->adresy = $adresArray;
   

2. Inspect the Generated Request
   Enable trace mode on your SoapClient to see the raw XML request and confirm the array is being included:

   $client = new SoapClient('your-wsdl-url', ['trace' => true]);
   // Execute your SOAP request here
   echo $client->__getLastRequest();
   

   This will let you verify exactly what’s being sent, so you can confirm if the array is missing or misformatted.

Problem 2: Specific Element Missing After Migrating to PHP 7 Server #

When elements disappear post-upgrade, it’s usually due to stricter type handling or changes in how SoapClient processes unassigned/null properties. Try these fixes:

1. Double-Check Property Spelling & Case
   PHP is case-insensitive for property names, but SOAP XML is case-sensitive. Ensure the property name in your code exactly matches the element name defined in the WSDL (e.g., if the WSDL uses <element name="nazwa">, use $adres->nazwa, not $adres->Nazwa).

2. Force Empty/Null Elements to Be Included
   PHP 7’s SoapClient may omit elements that are unassigned or set to null (especially if the WSDL marks them as nillable="true"). To force the element to appear in the XML:

   • Assign a default value like an empty string:

     $adres->ulica = ""; // Even empty, this triggers the element to be included
     

   • Use SoapVar to explicitly define the element:

     $adres->ulica = new SoapVar(
         '',
         XSD_STRING,
         'string',
         'http://www.w3.org/2001/XMLSchema'
     );
     

3. Adjust SOAP Client Options
   Try switching the SOAP version or adjusting encoding settings, as version differences can sometimes cause unexpected omissions:

   $client = new SoapClient('your-wsdl-url', [
       'trace' => true,
       'soap_version' => SOAP_1_2, // Or SOAP_1_1 if you were using 1.2 previously
       'encoding' => 'UTF-8'
   ]);
   

内容的提问来源于stack exchange，提问作者Adam D.