Question

i must provide a function via SOAP which is called “echo”. I don’t know how to do this because echo is already resevered by PHP. Is there any way?

BTW: I can’t use rename_function or override_function. Pecl-Apd isn’t available at the system.

Here is some code-stuff:

PHP:

$soap_server = new SoapServer('service.wsdl');
$soap_server->setClass('TestClass');

$soap_server->handle();

from the service.wsdl:

<message name="echo">
    <part name="parameters" element="tns:echo"/>
  </message>

[...]

<portType name="MyService">
[...]
<operation name="echo">
      <input message="tns:echo"/>
      <output message="tns:echoResponse"/>
    </operation>
[...]
</portType>
<binding name="MyServicePortBinding" type="tns:MyService">
[...]
<operation name="echo">
      <soap:operation soapAction="urn:ping"/>
      <input>
        <soap:body use="literal"/>
      </input>
      <output>
        <soap:body use="literal"/>
      </output>
    </operation>
[...]
</binding>

The SOAP-Client isn’t under my control. I must implement the given wsdl-file. But in my class always “echo” get called not “ping” and results in the error message PHP Fatal error: Function 'echo' doesn't exist in <file-path-and-name>.

My TestClass looks like this:

<?php

ini_set("soap.wsdl_cache_enabled", "0");

class TestClass {

  public function __construct()
  {

  }

  [...]

  public function ping($inputString)
  {
     return $inputString;
  }

}
?>

Answer 1

Finally I solved the problem using a Proxy Class:

class MySoapProxy
{
  public function __call($methodName, $args) {
    if($methodName == "echo") $methodName = "ping";
    $soapClass = new TestClass();
    $result = call_user_func_array(array($soapClass, $methodName),  $args[0]);
    return array($methodName . 'Result' => $result);
  }
}

My TestClass:

class TestClass {

  [...]

  public function ping($inputString)
  {
     return $inputString;
  }

}

And the SoapServer looks like this:

$soap_server = new SoapServer('myservice.wsdl');
$soap_server->setClass('MySoapProxy');

$soap_server->handle();