3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class A implements \Serializable { public function serialize() { $s = new \stdClass(); $s->id = 1; var_dump($s); return serialize($s); } public function unserialize($s) { } } class B extends A { public function serialize() { $p = parent::serialize(); $s = unserialize($p); $s->foo = 'bar'; $s2 = serialize($s); var_dump($p, $s, $s2); // $s2 = 'r:2' //var_dump(unserialize($s2)); // will throw error as can't unserialize die; //return serialize($s); } } $b = new B; serialize($b);
Output for 7.0.0 - 7.1.0
object(stdClass)#2 (1) { ["id"]=> int(1) } string(32) "O:8:"stdClass":1:{s:2:"id";i:1;}" object(stdClass)#3 (2) { ["id"]=> int(1) ["foo"]=> string(3) "bar" } string(52) "O:8:"stdClass":2:{s:2:"id";i:1;s:3:"foo";s:3:"bar";}"
Output for 5.3.0 - 5.3.29, 5.4.22 - 5.4.45, 5.5.5 - 5.6.28
object(stdClass)#2 (1) { ["id"]=> int(1) } string(32) "O:8:"stdClass":1:{s:2:"id";i:1;}" object(stdClass)#2 (2) { ["id"]=> int(1) ["foo"]=> string(3) "bar" } string(52) "O:8:"stdClass":2:{s:2:"id";i:1;s:3:"foo";s:3:"bar";}"
Output for 5.4.0 - 5.4.21, 5.5.0 - 5.5.4
object(stdClass)#2 (1) { ["id"]=> int(1) } string(32) "O:8:"stdClass":1:{s:2:"id";i:1;}" object(stdClass)#2 (2) { ["id"]=> int(1) ["foo"]=> string(3) "bar" } string(4) "r:2;"
Output for 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 6 object(stdClass)#2 (1) { ["id"]=> int(1) } string(32) "O:8:"stdClass":1:{s:2:"id";i:1;}" object(stdClass)#2 (2) { ["id"]=> int(1) ["foo"]=> string(3) "bar" } string(52) "O:8:"stdClass":2:{s:2:"id";i:1;s:3:"foo";s:3:"bar";}"
Output for 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 6 Fatal error: Interface 'Serializable' not found in /in/fuI8h on line 2
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 2 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/fuI8h on line 6 Fatal error: Class 'Serializable' not found in /in/fuI8h on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/fuI8h on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/fuI8h on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/fuI8h on line 2
Process exited with code 255.