Online PHP editor | output for oE0sG

@ 2013-03-25T13:48:32Z

<?php

function generate_comb($pos, &$res)
{
    global $comb;

    print_r('{' . $res . '}');
    echo "\n";
    if ($res != '') {
        $res = $res . ',';
    }

    for ($i = $pos + 1; $i < count($comb); $i++) {
        $var = $res . $comb[$i];
        generate_comb($i, $var);
    }

}

$comb = array(1, 2, 3, 4, 5);

$pos = -1;
$res = '';

generate_comb($pos, $res);

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, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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: {} {1} {1,2} {1,2,3} {1,2,3,4} {1,2,3,4,5} {1,2,3,5} {1,2,4} {1,2,4,5} {1,2,5} {1,3} {1,3,4} {1,3,4,5} {1,3,5} {1,4} {1,4,5} {1,5} {2} {2,3} {2,3,4} {2,3,4,5} {2,3,5} {2,4} {2,4,5} {2,5} {3} {3,4} {3,4,5} {3,5} {4} {4,5} {5}

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