each() is deprecated in PHP 7.2. The PHP website says:
This function is far slower at iteration than a normal foreach, and causes implementation issues for some language changes. It has therefore been deprecated.
Websites generate errors like these:
Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in _location_autocomplete() (line 1118 of /sites/all/modules/location/location.module).
3.0
Code
The issue particularly affects sites running on PHP version 7.2.0 or later.
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
On PHP 8, the autocomplete for the State field was throwing a 500 error. Patch #3 fixes it.
Patch #3 works for me too.
The patch was rolled 5 years ago. Perhaps the module maintainers can release a stable version with this patch as now that most sites are on PHP 8.1 or better, this is no longer a warning and it now crashes the Ajax response and renders the form useless.
Cheers,
Andrew