Online PHP editor | output for Ve8q2

@ 2014-03-29T20:51:45Z

<?php
// $a = array( 'kaushik', 'kaushik is', 'kaushik is great', 'is', 'is great', 'great' );
$a = array('usb', 'pc', 'cam 168', 'cam', '168', 'cam 168');

$a = array_unique($a);
$s = count($a) - 1;

$p = array();
foreach ($a as $key => $b)
{
    $x = 0;
    for ($i = 0; $i < count($a); $i++)
    {
        if ($key == $i) continue;

        $c = $a; unset($c[$key]);

        if (strpos($c[$i], $b) === false) $x++;

        if ($x == $s) array_push($p, $key);
    }
}

foreach ($print_following as $o => $value) {
    echo $a[$value]. ' ';
}
?>

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 variable $print_following in /in/Ve8q2 on line 24 Warning: foreach() argument must be of type array|object, null given in /in/Ve8q2 on line 24
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined variable: print_following in /in/Ve8q2 on line 24 Warning: Invalid argument supplied for foreach() in /in/Ve8q2 on line 24
Output for 4.3.0 - 4.3.10, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 7.3.32 - 7.3.33: Warning: Invalid argument supplied for foreach() in /in/Ve8q2 on line 24
Output for 4.3.11

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