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<?php var_dump(DateTime::createFromFormat('Y-m-d', '99999-12-12')); var_dump(DateTime::getLastErrors());
Output for 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.23, 8.3.0 - 8.3.11
bool(false) array(4) { ["warning_count"]=> int(0) ["warnings"]=> array(0) { } ["error_count"]=> int(2) ["errors"]=> array(2) { [4]=> string(40) "The separation symbol could not be found" [8]=> string(13) "Trailing data" } }

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43.3 ms | 407 KiB | 5 Q