Online PHP editor | output for 1Jm14

@ 2014-08-04T20:18:50Z

<?php

function getValue($testArray, $exploded, $index)
{
    if(is_array($testArray[$exploded[$index]]))
    {
        return getValue($testArray[$exploded[$index]], $exploded, $index++);
    }
    else
    {
        return $testArray[$exploded[$index]];
    }
}

    $string = 'router.format';
    $testArray = array(
        'router' => array(
            'format' => 'xml',
        ),
    );

$exploded = explode(".", $string);

/*if(count($exploded) != count($testArray))
{
    throw new Exception("mismatch");
}*/

$desiredValue = getValue($testArray, $exploded, 0);

       print_r($desiredValue);

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined array key "router" in /in/1Jm14 on line 5 Warning: Undefined array key "router" in /in/1Jm14 on line 11
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined index: router in /in/1Jm14 on line 5 Notice: Undefined index: router in /in/1Jm14 on line 11
Output for 7.3.32 - 7.3.33
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Notice: Undefined index: router in /in/1Jm14 on line 5 Notice: Undefined index: router in /in/1Jm14 on line 11

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