3v4l.org

run code in 300+ PHP versions simultaneously
<?php Foo {} Bar implements Serializable{ public function serialize() { return "foobar"; } public function unserialize($data) { } }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '{' in /in/SrPPY on line 3
Process exited with code 255.

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