PHP SoapClient::__setSoapHeaders() Method: Usage and Examples

Sets one or more SOAP headers included in subsequent client calls. This guide demonstrates its use in PHP code and explains when the result or side effect needs extra checks.

What It Does

Sets one or more SOAP headers included in subsequent client calls.

Syntax and Parameters

The examples below show a real call to SoapClient::__setSoapHeaders with suitable arguments. Read the function call in context: its connection, handle, input data or other prerequisites are created before use.

Requirements: SOAP extension; the corresponding WSDL or service implementation.

Example 1: Core Behavior

Requires a real trusted WSDL and deployed SOAP endpoint; operation arguments follow that contract.

<?php
$client = new SoapClient(getenv("SOAP_WSDL") ?: "https://soap.internal.test/service?wsdl", ["exceptions" => true, "trace" => false]);
$header = new SoapHeader("urn:example:service", "RequestId", bin2hex(random_bytes(8)));
$client->__setSoapHeaders($header);
echo "SOAP header configured";

Observe the returned value or changed resource state. A successful function call can still require additional checks before a higher-level operation is considered successful.

Example 2: Alternative or Failure Case

Requires a real trusted WSDL and deployed SOAP endpoint; operation arguments follow that contract.

<?php
$client = new SoapClient(getenv("SOAP_WSDL") ?: "https://soap.internal.test/account?wsdl", ["exceptions" => true, "trace" => false]);
$header = new SoapHeader("urn:example:billing", "RequestId", bin2hex(random_bytes(8)));
$client->__setSoapHeaders($header);
echo "SOAP header configured";

Compare the different inputs, environment assumptions or result checks. Do not use a transport-level success value as proof that all business-level requirements were met.

Practical Example: Applying the Rule

Requires a real trusted WSDL and deployed SOAP endpoint; operation arguments follow that contract.

<?php
$client = new SoapClient(getenv("SOAP_WSDL") ?: "https://soap.internal.test/inventory?wsdl", ["exceptions" => true, "trace" => false]);
$header = new SoapHeader("urn:example:inventory", "RequestId", bin2hex(random_bytes(8)));
$client->__setSoapHeaders($header);
echo "SOAP header configured";

In an application, convert low-level failures into controlled responses and log only non-sensitive diagnostic context.

Important Behavior and Edge Cases

Provide SoapHeader objects and avoid placing secret tokens into debug logs.

Comparison with Related Functions or Patterns

Common Beginner Mistakes

Key Takeaways

• Sets one or more SOAP headers included in subsequent client calls.
• Provide SoapHeader objects and avoid placing secret tokens into debug logs.
• __soapCall performs the actual SOAP operation.

Select this API or pattern based on its documented behavior and the trust boundaries in your own application, and test all external integrations against their actual deployments.