PHP OOP: How can I access static field and object? -


i want call getallpersons() in class, receive error:

fatal error: cannot redeclare non static core\model::$db static models\person::$db 

class person extends model {     protected static $db;     protected static $table = 'person';       function __construct() {         parent::__construct ();         self::$db = database::get ();     }       public static function getallpersons() {         return self::$db->select ( "select personid, firstname, lastname " . prefix . self::$table );         // $db->select not static     } }

another.php:

$data ['persons'] = person::getpersons ();

the problem self::$db (for example in getallpersons function) refers $db declared @ person class (which not defined). try following in code (change self:: static::):

function __construct() {         parent::__construct ();         static::$db = database::get ();      }

the previous allow constructor initialize $db var once initialize object of class.


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