Online PHP editor | perf 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));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.7	0.006	0.007	18.67
8.5.6	0.017	0.007	16.53
8.5.5	0.012	0.008	18.21
8.5.3	0.019	0.006	16.64
8.4.21	0.009	0.005	21.38
8.4.6	0.021	0.006	17.66
8.3.31	0.027	0.012	19.29
8.3.2	0.010	0.007	17.86
8.2.31	0.011	0.011	18.11
8.2.7	0.014	0.008	17.73
8.2.0	0.015	0.007	19.47
8.1.34	0.021	0.007	17.50
8.1.25	0.021	0.010	19.19
8.1.0	0.016	0.007	17.49
8.0.30	0.024	0.008	16.85
8.0.6	0.021	0.008	18.41
7.4.33	0.012	0.005	16.65
7.4.2	0.027	0.003	16.08

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