example for: service manager key: 'shared'

gistfile1.txt

<?php

return array(
    'invokables' => array(
        'my_uninitialized_mapper' => 'Module\Mapper\MyMapper',
    ),
    'factories' => array(
        'some_table_mapper' => function ($sm) {
            $mapper = $sm->get('my_uninitialized_mapper');
            $mapper->setTableName('some_table');
            $mapper->setDbAdapter($sm->get('module_db_adapter'));
        },
        'other_table_mapper' => function ($sm) {
            $mapper = $sm->get('my_uninitialized_mapper');
            $mapper->setTableName('other_table');
            $mapper->setDbAdapter($sm->get('module_db_adapter'));
        },
    ),
    /*
     * in the factories above, both returned instances start with the same 
     * uninitialized mapper, but have different table names
     * this would cause issues if you did not disable sharing.
     */
    'shared' => array(
        'my_uninitialized_mapper' => false, //default is true
    ),
);