Splitting Input Containing Substrings with the Delimiter

Suppose we wanted to break the following string into an array on the , character:

one, two, three

We can accomplish this easily using the explode helper method like so:

This results in the following array:

array:3 [
  0 => "one"
  1 => " two"
  2 => " three"
]

The results are what we would expect given our sample input, but let’s say we want to split the following string:

one, "two, three", four, five

Into this array:

array:5 [
  0 => "one"
  1 => " two"
  2 => " "three, four, five""
  3 => " six"
  4 => " seven"
]

Using the explode method on this string produces the following results, which are not quite what we are after:

array:5 [
  0 => "one"
  1 => " "two"
  2 => " three""
  3 => " four"
  4 => " five"
]

If ...