silverstripe-injector-nestception.php

<?php

class Injector extends Nestception {
  
	// ... rest of class...
  
	public static function unnestTemp($callable) {
		// Retain current instance so we can revert back to it momentarily.
		$revertTo = self::inst();
		
		// Unnest.
		self::unnest();
		
		// Execute.
		call_user_func($callable, $revertTo);
		
		// Revert!
		return self::set_inst($revertTo);
	}

}