What are the differences in reliability between nusoap and SOAP::Pear libraries for PHP when dealing with large data sets?

When dealing with large data sets in PHP, the nusoap library may be more reliable than the SOAP::Pear library due to its better performance and memory management. Nusoap is known for its efficient handling of large data sets, while SOAP::Pear may struggle with memory limitations and slower processing speeds when dealing with extensive data.

// Example of using nusoap library to handle large data sets
require_once('nusoap/nusoap.php');

$client = new nusoap_client('http://example.com/soap/server.php');
$response = $client->call('getData', array('param1' => 'value1', 'param2' => 'value2'));

// Process the response
if ($client->fault) {
    echo 'Error: '.$response;
} else {
    // Handle the data
}