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run code in 300+ PHP versions simultaneously
<?php class Foo implements Serializable { public function jsonSerialize() { return [ 'title' => $this->title, 'parent' => $this->parent, ]; } } $f1 = new Foo(); $f1->title = 'Foo'; $f2 = new Foo(); $f2->title = 'Bar'; $f2->parent = $f1; echo json_encode($f2);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Foo 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/WVWgi on line 3 Fatal error: Class Foo contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Serializable::serialize, Serializable::unserialize) in /in/WVWgi on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 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
Fatal error: Class Foo contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Serializable::serialize, Serializable::unserialize) in /in/WVWgi on line 3
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Class Foo contains 2 abstract methods and must therefore be declared abstract or implement the remaining methods (Serializable::serialize, Serializable::unserialize) in /in/WVWgi on line 10
Process exited with code 255.
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