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<?php ini_set("date.timezone", ''); var_dump(ini_get("date.timezone")); var_dump(date_default_timezone_get());
Output for 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
Warning: ini_set(): Invalid date.timezone value '', using 'Europe/Amsterdam' instead in /in/DUqTa on line 3 string(16) "Europe/Amsterdam" string(16) "Europe/Amsterdam"
Output for 7.0.0 - 7.0.8, 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30
string(0) "" string(3) "UTC"
Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.23
Warning: ini_set(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. in /in/DUqTa on line 3 string(0) "" Warning: date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /in/DUqTa on line 6 string(3) "UTC"

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