A snippet that has worked correctly for weeks suddenly throws a new error, with no edits made on your end at all.
⚡ Quick Fix (TL;DR)
The Culprit: It's tempting to assume you broke something, but unchanged code can't spontaneously introduce a new bug on its own.
The Fix: Check whether anything changed on the server side instead – most commonly a PHP version upgrade performed by the host. Compare the snippet's last-edited date against when the error first appeared; a real gap between the two is the clearest signal the cause is environmental, not code-side.
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