How can one troubleshoot connectivity issues between a SOAP client and server in PHP?

To troubleshoot connectivity issues between a SOAP client and server in PHP, first, check that the server is running and accessible from the client. Ensure that the server's WSDL file is correctly referenced in the client's code. Additionally, verify that any required authentication credentials are being passed correctly. 

$client = new SoapClient("http://example.com/server.wsdl");

// Set any authentication credentials if needed
$client->__setSoapHeaders(new SoapHeader('http://example.com/', 'Auth', array('username' => 'user', 'password' => 'pass')));

try {
    // Call a method on the SOAP server
    $response = $client->someMethod();
    echo $response;
} catch (SoapFault $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

SOAP client server connectivity troubleshooting

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