3v4l.org

run code in 300+ PHP versions simultaneously
<?php readonly class Foo { public string $name { get { return $this->name; } set { $this->name = ucfirst($value); } } }
Output for 8.4.1 - 8.4.13
Fatal error: Hooked properties cannot be readonly in /in/aQhYo on line 5
Process exited with code 255.
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.26
Parse error: syntax error, unexpected token "{", expecting "," or ";" in /in/aQhYo on line 5
Process exited with code 255.
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