Challenge 2 — Solution Task: Given the string "2026-06-20", use explode() to split it into year, month, and day parts. Then use sprintf() to echo it back out in the format "20/06/2026" (day/month/year, UK style). Output: 20/06/2026 Notes: - explode("-", $isoDate) splits the string wherever a hyphen appears, producing the array ["2026", "06", "20"] in that fixed order. - Each part is picked out by its known index (0 = year, 1 = month, 2 = day) matching the ISO 8601 format the original string was in. - sprintf() with three %s placeholders rebuilds the string in the reordered day/month/year sequence, with the slashes written directly into the format string itself.