Usort Sorting Multiple Fields

usort sorting multiple fields boolean and number

i hope this answer will satisfied you

$cmp = function ($a, $b) {
    if ($a['active'] == $b['active']) {
        return $a['age'] < $b['age'] ? -1 : 1;
    } else if ($a['active'] == true) {
        return -1;
    } else {
        return 1;
    }
};

usort($arr, $cmp);

How to sort php array by multiple fields using usort

usort($childs, function($a, $b) {
    if ($a['field1'] == $b['field1']) {
        if ($a['field2'] == $b['field2']) {
            return $a['field3'] < $b['field3'] ? -1 : 1;
        } else {
            return 0;
        }
        return $a['field2'] < $b['field2'] ? -1 : 1;
    }
    return $a['field1'] < $b['field1'] ? -1 : 1;
});

EDIT

a slightly more generic solution (untested)

$sorts = array('field1' => 'asc', 'field2' => 'asc', 'field3' => 'asc');

usort($childs, function($a, $b) use (array $sorts = array()) {
    foreach($sorts as $field => $direction) {
        if ($a[$field] != $b[$field]) {
            if ($direction == 'asc') {
                return $a[$field] < $b[$field] ? -1 : 1;
            }
            return $a[$field] < $b[$field] ? 1 : -1;
        }
    }
    return 0;
});

usort array by two parameters using spaceship operator

usort($products, function ($a, $b) {
    if ( $a['brand_order'] == $b["brand_order"] ) {  //brand_order are same
       return $a['title'] <=> $b['title']; //sort by title
    }
    return $a['brand_order'] <=> $b['brand_order']; //else sort by brand_order
});

Test here

PHP sort array by two field values

array_multisort() is the correct function, you must have messed up somehow:

// Obtain a list of columns
foreach ($data as $key => $row) {
    $return_fare[$key]  = $row['return_fare'];
    $one_way_fare[$key] = $row['one_way_fare'];
}

// Sort the data with volume descending, edition ascending
array_multisort($data, $return_fare, SORT_ASC, $one_way_fare, SORT_ASC);

If you take a look at the comments at PHP's manual page for array_multisort(), you can find a very helpful array_orderby() function which allows you to shorten the above to just this:

$sorted = array_orderby($data, 'return_fare', SORT_ASC, 'one_way_fare', SORT_ASC);

To avoid the looping use array_column() (as of PHP 5.5.0):

array_multisort(array_column($data, 'return_fare'),  SORT_ASC,
                array_column($data, 'one_way_fare'), SORT_ASC,
                $data);

usort: how I can sort by multiple data types?

Based on: PHP.net:multisort()

As you have stated in your question, this is just the basics of how it can be done. To make the whole thing more dynamic, you would need a way to pass the sorting choices into a function that then uses them in the foreach to control which sorting arrays are used...

<?php
//Build example data
$data = array();
$data[] = array('priority'=>2,'title'=>'B');
$data[] = array('priority'=>3,'title'=>'C');
$data[] = array('priority'=>2,'title'=>'A');
$data[] = array('priority'=>1,'title'=>'A');
$data[] = array('priority'=>3,'title'=>'D');

foreach ($data as $key => $row) {
    $priority[$key]  = $row['priority'];
    $title[$key] = $row['title'];
}

array_multisort($priority, SORT_ASC, $title, SORT_ASC, $data);

print_r($data);
?>

How to sort an array of objects by multiple fields?

You could use a chained sorting approach by taking the delta of values until it reaches a value not equal to zero.

var data = [{ h_id: "3", city: "Dallas", state: "TX", zip: "75201", price: "162500" }, { h_id: "4", city: "Bevery Hills", state: "CA", zip: "90210", price: "319250" }, { h_id: "6", city: "Dallas", state: "TX", zip: "75000", price: "556699" }, { h_id: "5", city: "New York", state: "NY", zip: "00010", price: "962500" }];
data.sort(function (a, b) {    return a.city.localeCompare(b.city) || b.price - a.price;});
console.log(data);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Sorting 2 fields ASC in array with usort (PHP)

That's because you are not comparing the usernames -- you are subtracting them numerically, which gives totally inappropriate results (see string conversion to numbers).

Replace return $a['user'] - $b['user'] with return strcmp($a['user'], $b['user']) to get the expected result.

Shameless self-promotion: You could also consider using the handy sorting technique I give here to get the correct result with much more appealing code:

usort($new, make_comparer('date', 'user'));

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