How to sort an array based on value in PHP

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PHP

Hi,
Array
(
[0] => Array
(
[0] => 2017-03-05 00:00:39
[1] => ABCD
[2] => 1234
)
[1] => Array
(
[0] => 2017-03-05 00:00:39
[1] => EFGH
[2] => 42342
)
[2] => Array
(
[0] => 2017-03-07 00:00:39
[1] => ABCD
[2] => 331242493
)
[3] => Array
(
[0] => 2017-03-07 00:00:39
[1] => EFGH
[2] => 46656
)
[4] => Array
(
[0] => 2017-03-06 00:00:39
[1] => ABCD
[2] => 7676
)
[5] => Array
(
[0] => 2017-03-06 00:00:39
[1] => EFGH
[2] => 98989
)
)
I need to get all the values that has 1st index as 'ABCD' in an array and sort the result based on the datetime (0th index).
My output should be this value :
[0] => Array
(
[0] => 2017-03-07 00:00:39
[1] => ABCD
[2] => 331242493
)
Please help.
Thanks in advance

What I have tried:

$array=array();
for($polIndex=0;$polIndex < count($pol_array);$polIndex++)//loop for getting items from pol item
{
$array = preg_grep("ABCD", $pol_array, PREG_GREP_INVERT);
}