test: allow other zend extensions to not fail the test

Ignore optional warning output in test

Due to the greedy behaviour of regex, we can't seem to use %A?
Use a for loop with a marker instead to ignore module startup warnings.

Fix test under older CI configurations

Fix #80092: ZTS + preload = segfault on shutdown

After preloading has executed, the executor globals for class_table and
function_table are still referring to the values during preloadin

Fix #80092: ZTS + preload = segfault on shutdown

After preloading has executed, the executor globals for class_table and
function_table are still referring to the values during preloading.
If no request happens after that then these values will remain dangling
pointers. If then the -v option on CLI or -h option (and possibly
others) on CGI is provided, there is a double free.
Fix it by nulling the pointers explicitly after preloading has finished
to fix it for all SAPIs.

Closes GH-12311.

show more ...