How can complexType be used in WSDL to handle multiple data sets in PHP?

To handle multiple data sets in PHP using complexType in WSDL, you can define a complexType that contains multiple elements representing different data sets. This allows you to structure your data in a more organized manner and pass multiple sets of data between the client and server.

// Define a complexType in WSDL with multiple elements
$wsdl = '
<wsdl:types>
    <xsd:schema targetNamespace="http://example.com">
        <xsd:element name="DataSet1" type="xsd:string"/>
        <xsd:element name="DataSet2" type="xsd:int"/>
    </xsd:schema>
</wsdl:types>';

// Use the complexType in your PHP code to handle multiple data sets
$client = new SoapClient("example.wsdl");
$response = $client->getDataSets(["DataSet1" => "data1", "DataSet2" => 123]);