Online PHP editor | output for 4scuq

@ 2019-12-05T16:16:59Z

<?php

function setPrevious(Throwable $e, Throwable $previous): Throwable
{
    return (function () use ($e, $previous) {
        $e->previous = $previous;
        return $e;
    })->call($e);
}

class SimpleException extends Exception
{
    public function __construct($message)
    {
        parent::__construct($message);
    }
}

$a = new SimpleException('A');
$b = new SimpleException('B');
$c = new SimpleException('C');

setPrevious($a, $b);
setPrevious($a, $c);

$e = $a;
do {
    var_dump($e->getMessage());
} while ($e = $e->getPrevious());

Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: Deprecated: Creation of dynamic property SimpleException::$previous is deprecated in /in/4scuq on line 6 string(1) "A"
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.
Output for 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33: string(1) "A"

preferences:dark modelive previewkey bindings