php 7.1: 500 internal server error on $statement->execute()

[samsonasik]

Steps to reproduce:

use Zend\Db\Sql\Select;
use Zend\Db\Sql\Sql;

        $sql = new Sql($dbadapter);

        $query = new Select();
        $query->from('tablename');
        
        $statement = $sql->prepareStatementForSqlObject($query);
        $result = $statement->execute();

The 500 internal server error happen on $statement->execute();

[samsonasik]

nvm, it was because of directory permission issue. closing.