use CredStash\CredStash;

$sdk = new Aws\Sdk(); // config omitted

$credStash = CredStash::createFromSdk($sdk);

// Get secret for "foo" credential
$secret = $credStash->get('foo');

// Including context parameters
$secret = $credStash->get('foo', ['env' => 'prod']);

// By default, the latest version is used,
// but a specific version can be passed in.
$secret = $credStash->get('foo', [], 2);

// Get latest version of all secrets
$secrets = $credStash->getAll(); // ['foo' => 'secret', 'bar' => 'another secret'];

// Including context parameters
$secrets = $credStash->getAll(['env' => 'prod']);

// Get specific version for all secrets
$secrets = $credStash->getAll([], 2);

// Get all secrets matching pattern
$secrets = $credStash->search('ssl.*'); // matches "ssl.foo" and "ssl.bar"

// This version also allows "?" and "[]" patterns.
$secrets = $credStash->search('s?l'); // matches "ssl" and "sdl"
$secrets = $credStash->search('gr[ae]y'); // matches "gray" and "grey"

// Context and version can specified here as well
$secrets = $credStash->search($pattern, $context, $version);

// Put secret into store at the next highest version
$credStash->put('foo', 'secret');

// Including context parameters
$credStash->put('foo', 'secret', ['env' => 'prod']);

// Put secret into store at a specified version
$credStash->put('foo', 'secret', [], 2);

$credStash->delete('foo');

$credentials = $credStash->listCredentials(); // ['foo' => '000000000000000002', 'bar' => '000000000000000003'];
// As you can see versions are padded to ensure sorting is consistent

// They can be optionally converted to integers though
// with the by passing false to the $pad parameter.
$credentials = $credStash->listCredentials(false); // ['foo' => 2, 'bar' => 3];