3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &get_instance_ref() { static $obj; echo 'Static object: '; var_dump($obj); if (!isset($obj)) { // Assign a reference to the static variable $obj = &new stdclass; } $obj->property++; return $obj; } function &get_instance_noref() { static $obj; global $property; echo 'Static object: '; var_dump($obj); if (isset($obj)) {$property=2; // Assign the object to the static variable $obj = new stdclass($this->property); } $obj->property++; return $obj; } $obj1 = get_instance_ref(); $still_obj1 = get_instance_ref(); echo "\n"; $obj2 = get_instance_noref(); $still_obj2 = get_instance_noref(); $still_obj3 = get_instance_noref(); ?>
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Deprecated: Assigning the return value of new by reference is deprecated in /in/he9Pn on line 9 Static object: NULL Notice: Undefined property: stdClass::$property in /in/he9Pn on line 11 Static object: NULL Notice: Undefined property: stdClass::$property in /in/he9Pn on line 11 Static object: NULL Warning: Creating default object from empty value in /in/he9Pn on line 28 Notice: Undefined property: stdClass::$property in /in/he9Pn on line 28 Static object: object(stdClass)#3 (1) { ["property"]=> int(1) } Notice: Undefined property: stdClass::$property in /in/he9Pn on line 28 Static object: object(stdClass)#4 (1) { ["property"]=> int(1) } Notice: Undefined property: stdClass::$property in /in/he9Pn on line 28
Output for 5.4.0 - 5.4.45
Deprecated: Assigning the return value of new by reference is deprecated in /in/he9Pn on line 9 Static object: NULL Static object: NULL Static object: NULL Warning: Creating default object from empty value in /in/he9Pn on line 28 Static object: object(stdClass)#3 (1) { ["property"]=> int(1) } Static object: object(stdClass)#4 (1) { ["property"]=> int(1) }
Output for 5.3.0 - 5.3.29
Deprecated: Assigning the return value of new by reference is deprecated in /in/he9Pn on line 9 Static object: NULL Static object: NULL Static object: NULL Strict Standards: Creating default object from empty value in /in/he9Pn on line 28 Static object: object(stdClass)#3 (1) { ["property"]=> int(1) } Static object: object(stdClass)#4 (1) { ["property"]=> int(1) }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Strict Standards: Assigning the return value of new by reference is deprecated in /in/he9Pn on line 9 Static object: NULL Static object: NULL Static object: NULL Strict Standards: Creating default object from empty value in /in/he9Pn on line 28 Static object: object(stdClass)#3 (1) { ["property"]=> int(1) } Static object: object(stdClass)#4 (1) { ["property"]=> int(1) }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Static object: NULL Notice: Undefined property: property in /in/he9Pn on line 11 Static object: NULL Notice: Undefined property: property in /in/he9Pn on line 11 Static object: NULL Notice: Undefined property: property in /in/he9Pn on line 28 Static object: object(stdClass)(1) { ["property"]=> int(1) } Notice: Undefined property: property in /in/he9Pn on line 28 Static object: object(stdClass)(1) { ["property"]=> int(1) } Notice: Undefined property: property in /in/he9Pn on line 28
preferences:
252.03 ms | 1396 KiB | 200 Q