…l ext crash with ICU at least 4.6, but probably with earlier versions too.
See http://marc.info/?l=php-cvs&m=125961714419896 Mac OS X 10.7&10.8 affected too.
Adding a non-zero multiple of 5 weekdays to any Friday, Saturday, or Sunday would result in a Sunday instead of the correct date. This patch provides an implementation of do_adjust_special_weekday() which does not suffer from this issue.
the test will be added while commit the fix for #62737
…rn the exit value) The fix is make 5.4 behavior consistent with 5.3