Online PHP editor | output for AjrB2

@ 2024-10-20T02:36:47Z

<?php

$tests = [
    [],                          // expect null
    [true, true],                // expect true
    [false, false],              // expect false
    [true, false, true],   // expect null
    [false, true, false], // expect null
];

foreach ($tests as $bools) {
    echo "\n";
    var_export(
        (function($bools) {
            $hasTrue = null;
            foreach ($bools as $b) {
                $hasTrue |= $b;
                if ($hasTrue ^ $b) {
                    return null;
                }
            }
            return $b ?? $hasTrue;
        })($bools)
    );
}

Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: NULL true false NULL NULL
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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