How to check if a file exists in a Rackspace Cloud Files container

cloudfiles-skip-if-exists.php

<?php

// Assumption: $container is an instance of OpenCloud\ObjectStore\Resource\Container

$filename = 'mugshot2.png';

try {
  
    // Try to retrieve the file, but only its headers to save
    // bandwidth and time.
    $container->getPartialObject($filename);
    
    // If we get this far, then the file exists
    $fileExists = true;
    
} catch (\Guzzle\Http\Exception\ClientErrorResponseException $e) {
    
    // If a 404 was returned, then the file doesn't exist
    $fileExists = ( $e->getResponse()->getStatusCode() != 404 );
}

if ($fileExists) {
    // skip the file                                                                                                                                                              
} else {
    // don't skip the file                                                                                                                                                        
}