(PHP 4 >= 4.3.0, PHP 5, PHP 7)
xmlrpc_is_fault — Determines if an array value represents an XMLRPC fault
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
Returns true if the argument means fault, false otherwise. Fault
description is available in $arg["faultString"], fault
code is in $arg["faultCode"].
See example by xmlrpc_encode_request().
A note, response from xmlrpc_decode is not always an array. Whenever the XMLRPC server returns a string, xmlrpc_is_fault will complain about not being an array.
Best way to detect errors is
<?php
$response = xmlrpc_decode($file);
if (is_array($response) && xmlrpc_is_fault($response)) {
throw new Exception($response['faultString'], $response['faultCode']);
}
?>