phpclass SubObject{ static $instances = 0; public $instance; public function __construct() {
phpclass SubObject{ static $instances = 0; public $instance; public function __construct() {
phpclass SubObject{ static $instances = 0; public $instance; public function __construct() {
php// Count total occurances of 'str' in 'buf'function count_instances($buf, $str) { $total = 0;
$set->add($obj);$set->add($obj);// Adding multiple instances of the same object will add them all.
$map->put($obj, 1);$map->put($obj, 2);// Using multiple instances of the same object will create new
gc.DEBUG_INSTANCES 当DEBUG_COLLECTABLE或者DEBUG_UNCOLLECTABLE被设置时,打印关于找到的实例对象的信息。

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