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Laminas\Soap\Client

The Laminas\Soap\Client class simplifies SOAP client development for PHP programmers, and may be used in either WSDL or non-WSDL mode.

Under WSDL mode, Laminas\Soap\Client uses a WSDL document to define transport layer options.

The WSDL description is usually provided by the web service the client will access. If the WSDL description is not made available, you may want to use Laminas\Soap\Client in non-WSDL mode. Under this mode, all SOAP protocol options have to be set explicitly on the Laminas\Soap\Client class.

Instantiation

The Laminas\Soap\Client constructor takes two parameters:

  • $wsdl - the URI of a WSDL file.
  • $options - options for modifying the behavior of the client instance.

Both of these parameters may be set later using the setWsdl($wsdl) and setOptions($options) methods respectively.

Non-WSDL mode requirements

If you use Laminas\Soap\Client component in non-WSDL mode, you must set the 'location' and 'uri' options.

The following options are recognized:

  • soap_version (soapVersion) - soap version to use (SOAP_1_1 or SOAP_1_2).
  • classmap (classMap) - maps WSDL types to PHP classes; option must be an array where keys are the WSDL types, and values are the PHP class to which to map.
  • encoding - internal character encoding (UTF-8 is always used as an external encoding).
  • wsdl - specifying this option sets the client in WSDL mode. Can be set after-the-fact using setWsdl($wsdl).
  • uri - target namespace for the SOAP service (required for non-WSDL-mode; no-op when in WSDL mode).
  • location - the URL to request (required for non-WSDL-mode; no-op when in WSDL mode).
  • style - request style (non-WSDL mode only); one of SOAP_RPC or SOAP_DOCUMENT.
  • use - method to use when encoding messages (non-WSDL mode only); either SOAP_ENCODED or SOAP_LITERAL.
  • login and password - login and password for HTTP authentication.
  • proxy_host, proxy_port, proxy_login, and proxy_password - use when specifying a service behind a proxy server.
  • local_cert and passphrase - HTTPS client certificate authentication options.
  • compression - compression options; combination of SOAP_COMPRESSION_ACCEPT, SOAP_COMPRESSION_GZIP and/or SOAP_COMPRESSION_DEFLATE options.

The following demonstrate usage of compression options:

// Accept response compression
$client = new Laminas\Soap\Client(
    'some.wsdl',
    ['compression' => SOAP_COMPRESSION_ACCEPT]
);

// Compress requests using gzip with compression level 5
$client = new Laminas\Soap\Client(
    'some.wsdl',
    ['compression' => SOAP_COMPRESSION_ACCEPT | SOAP_COMPRESSION_GZIP | 5]
);

// Compress requests using deflate compression
$client = new Laminas\Soap\Client(
    "some.wsdl",
    ['compression' => SOAP_COMPRESSION_ACCEPT | SOAP_COMPRESSION_DEFLATE]
);

Performing SOAP Requests

After we've created a Laminas\Soap\Client instance, we can perform SOAP requests.

Each web service method is mapped to a virtual Laminas\Soap\Client instance method which takes parameters with common PHP types.

As an example, given the following server:

class MyClass
{
    /**
     * This method takes ...
     *
     * @param integer $inputParam
     * @return string
     */
    public function method1($inputParam)
    {
        /* ... */
    }

    /**
     * This method takes ...
     *
     * @param integer $inputParam1
     * @param string  $inputParam2
     * @return float
     */
    public function method2($inputParam1, $inputParam2)
    {
        /* ... */
    }

    /* ... */
}

$server = new Laminas\Soap\Server(null, $options);
$server->setClass('MyClass');
$server->handle();

We can write a client as follows:

$client = new Laminas\Soap\Client("MyService.wsdl");

// $result1 is a string
$result1 = $client->method1(10);

// $result2 is a float
$result2 = $client->method2(22, 'some string');