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18 years ago
Here's a handy function to sort an array on 1 or more columns using natural sort:
<?php
// Example: $records = columnSort($records, array('name', 'asc', 'addres', 'desc', 'city', 'asc'));

$globalMultisortVar = array();
function columnSort($recs, $cols) {
    global $globalMultisortVar;
    $globalMultisortVar = $cols;
    usort($recs, 'multiStrnatcmp');
    return($recs);
}

function multiStrnatcmp($a, $b) {
    global $globalMultisortVar;
    $cols = $globalMultisortVar;
    $i = 0;
    $result = 0;
    while ($result == 0 && $i < count($cols)) {
        $result = ($cols[$i + 1] == 'desc' ? strnatcmp($b[$cols[$i]], $a[$cols[$i]]) : $result = strnatcmp($a[$cols[$i]], $b[$cols[$i]]));
        $i+=2;
    }
    return $result;
}

?>

Greetings,

  - John
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