Sort associative array by specific key in PHP – Technology

Sort associative array by specific key in PHP

There are the Following The simple About Sort associative array by specific key in PHP Full Information With Example and source code.

As I will cover this Post with live Working example to develop array sorting php, associative array,, so the sort array in php, sort associative array for this example is following below.

When it comes to Complex task an array, PHP has a lot to do and Nice Exp. While current working on project very major task where we some times stuck is an PHP array sorting.

sort array in php without using function

here, Lets start to Create PHP sort associative array by key in ascending order Example below.

//Sort associative array by specific key in PHP
$my_lang_arr[] = [
	'title' => 'Magento',
	'order' => 3,
];

$my_lang_arr[] = [
	'title' => 'Vuejs',
	'order' => 2,
];

$my_lang_arr[] = [
	'title' => 'Laravel',
	'order' => 1,
];
usort($my_lang_arr, function ($a, $b) {
	return $a['title'] <=> $b['title'];
});
print_r($my_lang_arr);

Example 2: php sort array by specific key

$array = array(
    array('name' => 'Vuejs',    'book_price' => 200),
    array('name' => 'Laravel', 'book_price' => 145),
    array('name' => 'Angularjs', 'book_price' => 160),
    array('name' => 'Magento',  'book_price' => 120),
    array('name' => 'Nodejs',  'book_price' => 135),
);

Sorting an associative array by a specific key with PHP

function sortByName($a, $b)
{
    $a = $a['name'];
    $b = $b['name'];

    if ($a == $b) return 0;
    return ($a < $b) ? -1 : 1;
}

function sortByWeight($a, $b)
{
    $a = $a['book_price'];
    $b = $b['book_price'];

    if ($a == $b) return 0;
    return ($a < $b) ? -1 : 1;
}

Call PHP Function

usort($array, 'sortByName');
usort($array, 'sortByWeight');

Sort associative array in php

function sortBy($columnm, &$array, $sort_direction = 'asc')
{
    usort($array, create_function('$a, $b', '
        $a = $a["' . $columnm . '"];
        $b = $b["' . $columnm . '"];

        if ($a == $b) return 0;

        $sort_direction = strtolower(trim($sort_direction));

        return ($a ' . ($sort_direction == 'desc' ? '>' : '<') .' $b) ? -1 : 1;
    '));

    return true;
}

sort array in php using function

sortBy('name',   $array);
sortBy('book_price', $array);

PHP Simple sort in the opposite order

sortBy('name',   $array, 'desc');
sortBy('book_price', $array, 'desc');

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