$list = Array
(
[0] => Array
(
[lat] => '43.65529'
[lng] => '-79.38397'
[name] => 'Name'
)
[1] => Array
(
[lat] => '43.65328'
[lng] => '-79.37947'
[name] => 'Name'
)
[2] => Array
(
[lat] => '43.65516'
[lng] => '-79.38892'
[name] => 'Name'
)
)
Sort with latitude going smallest to largest with longitude also going smallest to largest after
array_multisort(
array_column($list, 'lat'), SORT_ASC,
array_column($list, 'lng'), SORT_ASC,
$row
);
Array now looks like this
Array
(
[0] => Array
(
[lat] => '43.65328'
[lng] => '-79.37947'
[name] => 'Name'
)
[1] => Array
(
[lat] => '43.65516'
[lng] => '-79.38892'
[name] => 'Name'
)
[2] => Array
(
[lat] => '43.65529'
[lng] => '-79.38397'
[name] => 'Name'
)
)