Sort an array by 'price' value - php

Question

I have an array in the following format - I want to be able to sort this so the highest price is first - i've tried array_multisort() but I'm not having any luck so far.
$working[33] = array('id' => '33', 'price' => '250.00');
$working[34] = array('id' => '34', 'price' => '277.88');
Using some function to sort by price the end product should look as follows:- as the 277 price is greater than 250
$working[34] = array('id' => '34', 'price' => '277.88');
$working[33] = array('id' => '33', 'price' => '250.00');

Answer 1

Sorting using usort :
usort($working, function($a, $b) {
return $a['price'] < $b['price'] ? 1 : -1;
});

Answer 2

use below function to get your problem resolve
function multisort (&$array, $key) {
$valsort=array();
$ret=array();
reset($array);
foreach ($array as $ii => $va) {
$valsort[$ii]=$va[$key];
}
asort($valsort);
foreach ($valsort as $ii => $va) {
$ret[$ii]=$array[$ii];
}
$array=$ret;
}
multisort($multiarr,"order");

Answer 3

You can do it with array_multisort
Examples on the documentation.

Answer 4

Remove quotes OR use numeric sort.
String "24" is greater than "1834" because 2 is greater than 1.
My solution
$working[33] = array('id' => '33', 'price' => '250.00');
$working[34] = array('id' => '34', 'price' => '277.88');
$working[35] = array('id' => '35', 'price' => '1289.57');
$working[36] = array('id' => '36', 'price' => '15.42');
foreach ($working as $key => $row) {
$price[$key] = $row['price'];
}
array_multisort($price, SORT_NUMERIC, $working);
var_dump($working);
Output
array(4) {
[0]=>
array(2) {
["id"]=>
string(2) "36"
["price"]=>
string(5) "15.42"
}
[1]=>
array(2) {
["id"]=>
string(2) "33"
["price"]=>
string(6) "250.00"
}
[2]=>
array(2) {
["id"]=>
string(2) "34"
["price"]=>
string(6) "277.88"
}
[3]=>
array(2) {
["id"]=>
string(2) "35"
["price"]=>
string(7) "1289.57"
}
}

Answer 5

See Sorting arrays in php to solve your problem

Answer 6

usort($working, function ($a, $b) {
return bccomp($a['price'], $b['price'], 2);
});