Online PHP editor | output for asHlA

@ 2014-05-27T14:22:51Z

<?php
header('content-type:text/plain');

function HTMLStringify($arr, $seen = array())
{
    if (is_array($arr)) {
        $seen[] = &$arr;
        $html = '<ul>';

        foreach ($arr as $key => &$value) {

            $html .= '<li>' . $key;

            if (is_array($value)){

                if(in_array($value, $seen, true))
                {
                    $html .= '*RECURSION*';
                }
                else
                {
                    $html .= HTMLStringify($value, $seen);
                }
            }
            elseif(is_numeric($value) || is_string($value) || is_null($value))
            {
                $html .= ' = ' . $value;
            }
            else
            {
                $html .= ' [couldn\'t parse ' . gettype($value) . ']';
            }

            $html .= '</li>';

        }
        $html .= '</ul>';
        return $html;
    }
    else
    {
        return null;
    }
}

$arr = array(1 => 'one', 2 => 'two');
$arr[3] = &$arr;
echo HTMLStringify($arr);

Output for 5.3.15 - 5.3.29, 5.4.5 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: <ul><li>1 = one</li><li>2 = two</li><li>3*RECURSION*</li></ul>
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.14, 5.4.0 - 5.4.4: Fatal error: Nesting level too deep - recursive dependency? in /in/asHlA on line 16
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected '&', expecting T_VARIABLE or '$' in /in/asHlA on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected '&', expecting T_VARIABLE or '$' in /in/asHlA on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_VARIABLE' or `'$'' in /in/asHlA on line 10
Process exited with code 255.

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