3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $bar; private $baz; public function __construct($bar, $baz) { $this->bar = $bar; $this->baz = $baz; } public function __debugInfo() { return ['bar' => $this->bar]; } } $foo = new Foo('abc', 'def'); print_r(debug_backtrace()); print_r($foo); var_dump(debug_zval_dump($foo)); echo var_export($foo);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" interned } NULL \Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" interned } NULL \Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 8.1.0 - 8.1.28
Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" interned } NULL Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 7.0.0 - 7.0.20, 7.1.0, 7.1.7 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" refcount(1) } NULL Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 7.1.5 - 7.1.6
Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" refcount(3) } NULL Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 5.6.7 - 5.6.28
Array ( ) Foo Object ( [bar] => abc ) object(Foo)#1 (1) refcount(2){ ["bar"]=> string(3) "abc" refcount(2) } NULL Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35
Array ( ) Foo Object ( [bar:Foo:private] => abc [baz:Foo:private] => def ) object(Foo)#1 (2) refcount(2){ ["bar":"Foo":private]=> string(3) "abc" refcount(1) ["baz":"Foo":private]=> string(3) "def" refcount(1) } NULL Foo::__set_state(array( 'bar' => 'abc', 'baz' => 'def', ))

preferences:
172.51 ms | 402 KiB | 227 Q