#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)^(https:\/\/open.spotify.com\/user\/spotify\/playlist\/|spotify:user:spotify:playlist:)([a-zA-Z0-9]+)(.*)$"
Local $sString = "https://open.spotify.com/user/spotify/playlist/37i9dQZF1DZ06evO2ZpGiQ?si=-6S0EBlURrao__YyIOW6bg" & @CRLF & _
"spotify:user:spotify:playlist:37i9dQZF1DZ06evO2ZpGiQ"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH)
Local $aFullArray[0]
For $i = 0 To UBound($aArray) -1
_ArrayConcatenate($aFullArray, $aArray[$i])
Next
$aArray = $aFullArray
; Present the entire match result
_ArrayDisplay($aArray, "Result")
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm