php sort array of arrays code example

Example 1: php sort multidimensional array

array_multisort(array_map(function($element) {
      return $element['order'];
  }, $array), SORT_ASC, $array);

print_r($array);

Example 2: sort array of array php

sort() //sort arrays in ascending order
rsort() //sort arrays in descending order
asort() //sort associative arrays in ascending order, according to the value
ksort() //sort associative arrays in ascending order, according to the key
arsort() //sort associative arrays in descending order, according to the value
krsort() //sort associative arrays in descending order, according to the key
  
//Example
  $array = array(1, 3, 2);
  sort($array) //1, 2, 3

Example 3: sort multi array php

$keys = array_column($array, 'Price');

		array_multisort($keys, SORT_ASC, $array);
	
		print_r($array);

Example 4: php sort by associative array value

//php 7+
usort($inventory, function ($item1, $item2) {
    return $item1['price'] <=> $item2['price'];
});

Example 5: php sort array of array by key

$inventory = [
	['price' => 10.99, 'product' => 'foo 1'],
    ['price' => 5.99, 'product' => 'foo 2'],
  	['price' => 100, 'product' => 'foo 3'],
  
];

$price = array_column($inventory, 'price');

array_multisort($price, SORT_DESC, $inventory);

Example 6: sort array php

<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
asort($fruits);
foreach ($fruits as $key => $val) {
    echo "$key = $val\n";
}
?>
//Would output:
c = apple
b = banana
d = lemon
a = orange