Severity: Notice
Message: Only variable references should be returned by reference
Filename: core/Common.php
Line Number: 257
Severity: Notice
Message: MemcachePool::get(): Server 127.0.0.1 (tcp 11211, udp 0) failed with: Connection refused (111)
Filename: drivers/Cache_memcache.php
Line Number: 25
Severity: Notice
Message: Undefined property: stdClass::$cat_id
Filename: models/quiz_model.php
Line Number: 222
Severity: Notice
Message: Undefined property: stdClass::$subcat_id
Filename: models/quiz_model.php
Line Number: 222
Severity: Notice
Message: Undefined variable: categoryId
Filename: models/quiz_model.php
Line Number: 45