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run code in 300+ PHP versions simultaneously
<?php class D { } class E extends D { public $D; } class F extends D { public $D; public $E; } class A implements Serializable { public function serialize () { $serialized = array(); foreach($this as $prop => $val) { $serialized[$prop] = $val; } return serialize($serialized); //return serialize(get_object_vars($this)); } function unserialize($serialized) { foreach(unserialize($serialized) as $prop => $val) { $this->$prop = $val; } return true; } } class B extends A { public $A; } class C extends A { public $A; public $B; } $oC = new C(); $oC->A = new A(); $oC->B = new B(); $oC->B->A = $oC->A; $oF = new F(); $oF->D = new D(); $oF->E = new E(); $oF->E->D = $oF->D; $ser = serialize($oC); echo $ser, "\n"; $ser = serialize($oF); echo $ser, "\n";
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: A 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/Xa3vX on line 19 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/Xa3vX on line 41 Deprecated: C 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/Xa3vX on line 46 C:1:"C":71:{a:2:{s:1:"A";C:1:"A":6:{a:0:{}}s:1:"B";C:1:"B":18:{a:1:{s:1:"A";r:3;}}}} O:1:"F":2:{s:1:"D";O:1:"D":0:{}s:1:"E";O:1:"E":1:{s:1:"D";r:2;}}
Output for 5.4.0 - 5.4.45, 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
C:1:"C":71:{a:2:{s:1:"A";C:1:"A":6:{a:0:{}}s:1:"B";C:1:"B":18:{a:1:{s:1:"A";r:3;}}}} O:1:"F":2:{s:1:"D";O:1:"D":0:{}s:1:"E";O:1:"E":1:{s:1:"D";r:2;}}
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
C:1:"C":85:{a:2:{s:1:"A";C:1:"A":6:{a:0:{}}s:1:"B";C:1:"B":32:{a:1:{s:1:"A";C:1:"A":6:{a:0:{}}}}}} O:1:"F":2:{s:1:"D";O:1:"D":0:{}s:1:"E";O:1:"E":1:{s:1:"D";r:2;}}
Output for 5.0.5
Fatal error: Interface 'Serializable' not found in /in/Xa3vX on line 19
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class 'Serializable' not found in /in/Xa3vX on line 19
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Xa3vX on line 10
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
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Xa3vX on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Xa3vX on line 10
Process exited with code 255.

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