How to create a regular expression to display words separated by commas?

Question

PHP

Good afternoon!
There is a string of the form: 110, 50, 42, 69
Purpose: to extract what is between the commas, for subsequent conversion to the form

<div id="bus_tag">110</div><div id="bus_tag">50</div>

etc.
As far as I understand, you need to look in the direction of preg_match, but I still could not figure out regular expressions.
Thank you.

Answer 1

$str = explode(', ', '110, 50, 42, 69');
foreach($str as $val){
echo '<div id="bus_tag">' . $val . '</div>';
}

Answer 2

explode() won't work?

Answer 3

$data = explode(',', '110, 50, 42, 69');