3v4l.org

run code in 500+ PHP versions simultaneously

@ 2023-10-20T13:39:03Z

<?php

function method_a(&$links, ?bool $indexable)
{
    $links[] = [
        'indexable === ' => as_string($indexable),
        // very long list... and:
        ...(null !== $indexable ? ['indexable' => $indexable] : []),
    ];
}

function method_b(&$links, ?bool $indexable)
{
    $link = [
        'indexable === ' => as_string($indexable),
        // very long list... and:
    ];
    if (null !== $indexable) {
        $link['indexable'] = $indexable;
    }
    $links[] = $link;
}

function as_string($v)
{
    if (null === $v) {
        return 'null';
    }
    if (false === $v) {
        return 'false';
    }
    if (true === $v) {
        return 'true';
    }
}

$links = [];
method_a($links, null);
method_a($links, true);
method_a($links, false);
var_dump($links);

$links = [];
method_b($links, null);
method_b($links, true);
method_b($links, false);
var_dump($links);

Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: array(3) { [0]=> array(1) { ["indexable === "]=> string(4) "null" } [1]=> array(2) { ["indexable === "]=> string(4) "true" ["indexable"]=> bool(true) } [2]=> array(2) { ["indexable === "]=> string(5) "false" ["indexable"]=> bool(false) } } array(3) { [0]=> array(1) { ["indexable === "]=> string(4) "null" } [1]=> array(2) { ["indexable === "]=> string(4) "true" ["indexable"]=> bool(true) } [2]=> array(2) { ["indexable === "]=> string(5) "false" ["indexable"]=> bool(false) } }
Output for 8.0.1 - 8.0.30: Fatal error: Uncaught Error: Cannot unpack array with string keys in /in/6lRha:6 Stack trace: #0 /in/6lRha(39): method_a(Array, true) #1 {main} thrown in /in/6lRha on line 6
Process exited with code 255.

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