Online PHP editor | output for lfWrQ

@ 2026-06-01T00:47:19Z

<?php

class ComplicatedConstructor
{
    public function __construct(
        public readonly int $integer,
        public readonly float $float,
        public readonly bool $boolean,
        public readonly string $string,
        private ?\Closure $closure = null,
        public readonly float|string|null $optional = 'optional',
    ) {}
}

$outOfOrderArray = [
    'optional' => 'The optional',
    'string'   => 'The string',
    'float'    => (float) '42.5',
    'integer'  => 9001,
    'boolean'  => !true,
];

var_dump(new ComplicatedConstructor(...$outOfOrderArray));

Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.31, 8.3.2 - 8.3.31, 8.4.6, 8.5.3 - 8.5.6: object(ComplicatedConstructor)#1 (6) { ["integer"]=> int(9001) ["float"]=> float(42.5) ["boolean"]=> bool(false) ["string"]=> string(10) "The string" ["closure":"ComplicatedConstructor":private]=> NULL ["optional"]=> string(12) "The optional" }
Output for 8.0.30: Parse error: syntax error, unexpected identifier "int", expecting variable in /in/lfWrQ on line 6
Process exited with code 255.
Output for 7.4.2: Parse error: syntax error, unexpected 'public' (T_PUBLIC), expecting variable (T_VARIABLE) in /in/lfWrQ on line 6
Process exited with code 255.

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