regex - regular expression to match pipe separated strings with pipe escaping

Question

I'd like to get the single strings of a pipe-separated string, with "pipe escaping" support, e.g.:

fielda|field b |field|with|pipe|inside

would get me:

array("fielda", "field b ", "field|with|pipe|inside")

How would I reach that goal with a regular expression?

Answer 1

Split  by this (?<!\)|

See demo.The lookbehind makes sure | is not after .

https://regex101.com/r/pM9yO9/15