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<?php class SerialDateTime extends DateTime implements JsonSerializable{ public function jsonSerialize(){ return ['timestamp' => $this->getTimestamp()]; } public static function createFromFormat(){ $a = call_user_func_array(array(__CLASS__ , 'parent::'.__FUNCTION__), func_get_args()); $b = new self(); return $b->setTimestamp($a->getTimestamp()); } } echo json_encode([SerialDateTime::createFromFormat('m/d/Y', '10/31/2011')]);
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of SerialDateTime::createFromFormat() must be compatible with DateTime::createFromFormat(string $format, string $datetime, ?DateTimeZone $timezone = null): DateTime|false in /in/qdRSK on line 9
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Declaration of SerialDateTime::createFromFormat() must be compatible with DateTime::createFromFormat(string $format, string $datetime, ?DateTimeZone $timezone = null) in /in/qdRSK on line 9
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of SerialDateTime::createFromFormat() should be compatible with DateTime::createFromFormat($format, $time, ?DateTimeZone $object = NULL) in /in/qdRSK on line 9 [{"timestamp":1320080563}]
Output for 7.3.32 - 7.3.33
Warning: Declaration of SerialDateTime::createFromFormat() should be compatible with DateTime::createFromFormat($format, $time, ?DateTimeZone $object = NULL) in /in/qdRSK on line 3 [{"timestamp":1320076963}]
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.31
Warning: Declaration of SerialDateTime::createFromFormat() should be compatible with DateTime::createFromFormat($format, $time, ?DateTimeZone $object = NULL) in /in/qdRSK on line 3 [{"timestamp":1320080563}]
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Warning: Declaration of SerialDateTime::createFromFormat() should be compatible with DateTime::createFromFormat($format, $time, $object = NULL) in /in/qdRSK on line 3 [{"timestamp":1320080563}]
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Strict Standards: Declaration of SerialDateTime::createFromFormat() should be compatible with DateTime::createFromFormat($format, $time, $object = NULL) in /in/qdRSK on line 3 [{"timestamp":1320080563}]
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/qdRSK on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/qdRSK on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/qdRSK on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/qdRSK on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/qdRSK on line 3
Process exited with code 255.

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