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<?php $array = [ (object)['label' => '3-6 Months'], (object)['label' => '0-3 Months'], (object)['label' => '6-12 Months'], (object)['label' => '12-18 Months'], ]; $foo = function($a, $b) { return strnatcmp($a->label, $b->label); }; var_dump($array); print_r($array); usort($array, $foo); print_r($array);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(4) { [0]=> object(stdClass)#1 (1) { ["label"]=> string(10) "3-6 Months" } [1]=> object(stdClass)#2 (1) { ["label"]=> string(10) "0-3 Months" } [2]=> object(stdClass)#3 (1) { ["label"]=> string(11) "6-12 Months" } [3]=> object(stdClass)#4 (1) { ["label"]=> string(12) "12-18 Months" } } Array ( [0] => stdClass Object ( [label] => 3-6 Months ) [1] => stdClass Object ( [label] => 0-3 Months ) [2] => stdClass Object ( [label] => 6-12 Months ) [3] => stdClass Object ( [label] => 12-18 Months ) ) Array ( [0] => stdClass Object ( [label] => 0-3 Months ) [1] => stdClass Object ( [label] => 3-6 Months ) [2] => stdClass Object ( [label] => 6-12 Months ) [3] => stdClass Object ( [label] => 12-18 Months ) )

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