3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $a = 3; public function __construct($i) { $this->a = $i + 13; } public function printA() { echo $this->a; } } $foo = new Foo(4); var_export(serialize($foo));
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
'O:3:"Foo":1:{s:6:"' . "\0" . 'Foo' . "\0" . 'a";i:17;}'
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 'O:3:"Foo":1:{s:6:"' . "\0" . 'Foo' . "\0" . 'a";i:17;}'
preferences:
164.01 ms | 402 KiB | 197 Q