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@ 2022-04-07T17:12:12Z

<?php

enum CacheHit {
    case CacheHit;
}

function foo(string $foo): string|CacheHit {
    static $data = [];

    if (isset($data[$foo])) {
        return CacheHit::CacheHit;
    }
    $data[$foo] = true;

    return $foo;
}

var_dump(foo('foo'));
var_dump(foo('bar'));
var_dump(foo('bar'));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

59.49 ms | 938 KiB | 5 Q