Ask PHP how to divide the value of a one-dimensional array into groups

How does PHP divide the values of one-dimensional arrays into groups?
I am now in the form of an array of
Array
(
[0] + = deal Time deal price price change volume (hand) turnover (yuan) nature
）

I want to split into the form of
Array
(
[0]=>
Array
（
[0]=> deal Time
[1]=> Sold Price
[2]=> Price Changes
[3]=> Volume (Lot)
[4]=> turnover (yuan)
[5]=> Property
）
)

------Solution--------------------

PHP Code

$ar =array (0 = ' deal time traded price change volume (Lot) turnover (yuan) nature '); foreach ($ar as & $v) $v =explode (", $v); Print_r ($ar);
