note 51396 deleted from language.oop5.basic by colder

Note Submitter: graced at monroe dot NOSPAM dot wednet dot edu ---- In reponse to jerry's comment: "If you instantiate a class and assign it to a variable over and over again, php will start saving instances #1 and #2 in memory but will stop at these"... This is because after assigning the new object to the variable, there is no longer anything referencing the old object so it is destroyed. If there WAS another reference, say you assigned another variable to the first variable before setting the first to a new class, it'd be preserved. In reality, this really makes no difference to the programmer, just thought an explanation was in order. <?php $obj1 = new stdclass(); var_dump($obj1); // object #1 $obj1 = new stdclass(); var_dump($obj1); // object #2 // no more references to object #1, so it is destroyed. $obj1 = new stdclass(); // object #1 var_dump($obj1); $obj2 = $obj1; // two variables now reference object #1 $obj1 = new stdclass(); // becomes object #3 // no more references to object #2, so it is destroyed var_dump($obj1); $obj1 = new stdclass(); // object #2 //etc. ?>