I installed PHPExcel via composer for use within Zend Framework 2.1. The classes appear to autoload fine and I can load a file for reading.
However, when \PHPExcel_Shared_Date::isDateTime($cell) is called, it tosses the following error:
PHP Fatal error: Call to undefined method PHPExcel_CachedObjectStorage_Memory::getStyle() in C:\project\vendor\phpoffice\phpexcel\Classes\PHPExcel\Shared\Date.php on line 256
I verified that the $cell in question is indeed of type PHPExcel_Cell and $cell->getParent() returns PHPExcel_CachedObjectStorage_Memory.
Am I missing something, or is this a bug?