Simple feature toggles

Example

$featureConfig   = require_once 'config.php';
$featureToggle   = FeatureToggle::build($featureConfig);
$featuresToCheck = ['myFeature', 'myOtherFeature'];

foreach ($featuresToCheck as $feature) {
    if ($featureToggle->isEnabled($feature)) {
        echo "$feature is enabled \n";
    } else {
        echo "$feature is disabled \n";
    }
}