note 108650 added to language.variables.scope

As sideshowAnthony at googlemail dot com mentioned, function defined static variables are persistent across instances. They are only available inside the scope of the function and not within other members of the class. If you have recursive functions that build iteratively inside of a class instance, you might want to consider using class variables (e.g. $this->_localVar) instead. <?php class A { function foo($a = '') { static $b; if ($a != '') { $b = $a; } echo $b; } } $a = new A(); $a->foo('c'); // 'c' $b = new A(); $b->foo(); // also 'c' ---- Server IP: 69.147.83.197 Probable Submitter: 71.41.56.66 ---- Manual Page -- http://www.php.net/manual/en/language.variables.scope.php Edit -- https://master.php.net/note/edit/108650 Del: integrated -- https://master.php.net/note/delete/108650/integrated Del: useless -- https://master.php.net/note/delete/108650/useless Del: bad code -- https://master.php.net/note/delete/108650/bad+code Del: spam -- https://master.php.net/note/delete/108650/spam Del: non-english -- https://master.php.net/note/delete/108650/non-english Del: in docs -- https://master.php.net/note/delete/108650/in+docs Del: other reasons-- https://master.php.net/note/delete/108650 Reject -- https://master.php.net/note/reject/108650 Search -- https://master.php.net/manage/user-notes.php