3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a = array(); public function __construct() { $this->a[] = new B(1); $this->a[] = new B(2); } } class B implements Serializable { public $b; public function __construct($c) { $this->b = new C($c); } public function serialize() { $serialized = serialize(clone $this->b); print_r($serialized);echo "\n"; return $serialized; } public function unserialize($data) { print_r($data);echo "\n"; $this->b = unserialize($data); } } class C { public $c; public function __construct($c) { $this->c = $c; } } $a = unserialize(serialize(new A())); print_r($a);
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: B implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/7ZMKs on line 13 O:1:"C":1:{s:1:"c";i:1;} O:1:"C":1:{s:1:"c";i:2;} O:1:"C":1:{s:1:"c";i:1;} O:1:"C":1:{s:1:"c";i:2;} A Object ( [a] => Array ( [0] => B Object ( [b] => C Object ( [c] => 1 ) ) [1] => B Object ( [b] => C Object ( [c] => 2 ) ) ) )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.22 - 5.4.45, 5.5.5 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
O:1:"C":1:{s:1:"c";i:1;} O:1:"C":1:{s:1:"c";i:2;} O:1:"C":1:{s:1:"c";i:1;} O:1:"C":1:{s:1:"c";i:2;} A Object ( [a] => Array ( [0] => B Object ( [b] => C Object ( [c] => 1 ) ) [1] => B Object ( [b] => C Object ( [c] => 2 ) ) ) )
Output for 5.4.0 - 5.4.21, 5.5.0 - 5.5.4
O:1:"C":1:{s:1:"c";i:1;} r:4; O:1:"C":1:{s:1:"c";i:1;} r:4; A Object ( [a] => Array ( [0] => B Object ( [b] => C Object ( [c] => 1 ) ) [1] => B Object ( [b] => ) ) )
Output for 5.0.5
<br /> <b>Fatal error</b>: Interface 'Serializable' not found in <b>/in/7ZMKs</b> on line <b>13</b><br />
Process exited with code 255.
Output for 5.0.0 - 5.0.4
<br /> <b>Fatal error</b>: Class 'Serializable' not found in <b>/in/7ZMKs</b> on line <b>13</b><br />
Process exited with code 255.
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/7ZMKs</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/7ZMKs</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/7ZMKs</b> on line <b>4</b><br />
Process exited with code 255.
preferences:
240.65 ms | 401 KiB | 371 Q