How to sort an array of arrays by a specific key

Question

I want to sort my array rows on the bases of MYCOUNT index which is calculated by my code. MYCOUNT is calculated number of matched words in KEYWORDS. I have google different functions but i never got required result. I am new in php i have no idea how to do it and i never found result on google which can help me.

$word = "red pent";
$flag = true;
$main_flag = true;
$list = array();
$result = $this->db->get('products')->result_array();
foreach ($result as $product):
    $main_flag = true;
    $keywords = explode(';', $product['product_keyword']);
    $count = 0;
    foreach ($keywords as $keys) {
        $search = explode(' ', $word);
        $local_f = false;
        foreach ($search as $w) {
            if (strtolower(trim($w)) === strtolower(trim($keys))) {
                $local_f = true;
                $count++;
                break;
            }
        }
    }
    if ($count > 0) {
        $product['mycount'] = $count;
        array_push($list, $product);
    }
    if ($main_flag) {
        //array_push($list,$product);
    }
endforeach;

Array Data

Salman Arshad · Accepted Answer · 2014-09-13 08:18:13Z

2

When you want to sort based on user defined criteria you use the sorting functions that allow "user defined" sorting, such as uasort:

function sortby_mycount_asc($a, $b) {
    return $a["mycount"] - $b["mycount"];
}
uasort($product, "sortby_mycount_asc");

answered Sep 13, 2014 at 8:18

Salman Arshad

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Comments

Qasim Khokhar · Accepted Answer · 2014-09-13 08:22:12Z

0

Its working in my case

function cmp($a, $b) {

        if ($a['mycount'] == $b['mycount']) {
            return 0;
        }
        return ($a < $b) ? 1 : -1;
    }

    uasort($list,"cmp");

answered Sep 13, 2014 at 8:22

Qasim Khokhar

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