public function mergeEnvPlaceholders(self
$bag) { if ($newPlaceholders =
$bag->
getEnvPlaceholders()) { $this->envPlaceholders +=
$newPlaceholders;
foreach ($newPlaceholders as $env =>
$placeholders) { $this->envPlaceholders
[$env] +=
$placeholders;
} } if ($newUnusedPlaceholders =
$bag->
getUnusedEnvPlaceholders()) { $this->unusedEnvPlaceholders +=
$newUnusedPlaceholders;
foreach ($newUnusedPlaceholders as $env =>
$placeholders) { $this->unusedEnvPlaceholders
[$env] +=
$placeholders;
} } } /**
* Maps env prefixes to their corresponding PHP types.
*
* @return void
*/