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<?php var_dump(serialize(array( 'Title' => 'MR', 'FirstName' => 'Test', 'LastName' => 'Patient' )));
based on VrEQM
Output for 4.3.0 - 7.2.0
string(83) "a:3:{s:5:"Title";s:2:"MR";s:9:"FirstName";s:4:"Test";s:8:"LastName";s:7:"Patient";}"