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<?php var_dump(\DateTime::createFromFormat(\DateTime::RFC3339, '2017-99-99T08:51:13-03:00')); var_dump(\DateTime::getLastErrors());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
object(DateTime)#1 (3) { ["date"]=> string(26) "2025-06-07 08:51:13.000000" ["timezone_type"]=> int(1) ["timezone"]=> string(6) "-03:00" } array(4) { ["warning_count"]=> int(1) ["warnings"]=> array(1) { [25]=> string(27) "The parsed date was invalid" } ["error_count"]=> int(0) ["errors"]=> array(0) { } }

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