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<?php ini_set('serialize_precision', 8); $expected = '1487285080.123456'; $date = DateTimeImmutable::createFromFormat('U.u', $expected); var_dump($expected, json_encode((float) $date->format('U.u'))); ini_set('serialize_precision', 16); $expected = '1487285080.123456'; $date = DateTimeImmutable::createFromFormat('U.u', $expected); var_dump($expected, json_encode((float) $date->format('U.u')));
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(17) "1487285080.123456" string(12) "1.4872851e+9" string(17) "1487285080.123456" string(17) "1487285080.123456"
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
string(17) "1487285080.123456" string(15) "1487285080.1235" string(17) "1487285080.123456" string(15) "1487285080.1235"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45
Fatal error: Class 'DateTimeImmutable' not found in /in/UGuFv on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Undefined class name 'datetimeimmutable' in /in/UGuFv on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Undefined class name 'datetimeimmutable' in /in/UGuFv on line 6

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