Fixed Enhanced Search 1.1.7 PHP < 5.4 compatibility issue

[Mike]

Affected version

1.1.7

Enhanced Search 1.1.7 accidentally uses a construct that requires PHP 5.4 or newer. If you are running an older version, you'll receive a parse error in library/XenES/Model/Elasticsearch.php.

To fix this, in the mentioned file, change:

public function createOptimizedIndex($indexName, array $settings = [], $deleteFirst = true)

to:

public function createOptimizedIndex($indexName, array $settings = array(), $deleteFirst = true)

Then change:

$mapping['properties']['type'] = ['type' => 'keyword'];

to:

$mapping['properties']['type'] = array('type' => 'keyword');

Alternatively, using a newer PHP version is strongly recommended.