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<?php class SerialDateTime extends DateTime implements JsonSerializable{ public function jsonSerialize(){ return ['timestamp' => $this->getTimestamp()]; } public function __toString(){ return $this->getTimestamp(); } // TODO: Is this the best way, or is there a better way? public static function createFromFormat($f, $t, $tz=NULL){ $dateTime = call_user_func( array('SerialDateTime', 'parent::createFromFormat'), $f, $t, $tz ); $ret = new self(); return $ret->setTimestamp($dateTime->getTimestamp()); } } echo strnatcasecmp(new SerialDateTime, new SerialDateTime('January 1, 2013'));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of SerialDateTime::createFromFormat($f, $t, $tz = null) should either be compatible with DateTime::createFromFormat(string $format, string $datetime, ?DateTimeZone $timezone = null): DateTime|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/rIL9e on line 14 Deprecated: Return type of SerialDateTime::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/rIL9e on line 5 1
Output for 8.0.0 - 8.0.30
1
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Method SerialDateTime::__toString() must return a string value in /in/rIL9e:24 Stack trace: #0 /in/rIL9e(24): strnatcasecmp(Object(SerialDateTime), Object(SerialDateTime)) #1 {main} thrown in /in/rIL9e on line 24
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Recoverable fatal error: Method SerialDateTime::__toString() must return a string value in /in/rIL9e on line 24
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20
Catchable fatal error: Method SerialDateTime::__toString() must return a string value in /in/rIL9e on line 24
Process exited with code 255.
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/rIL9e on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/rIL9e 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/rIL9e 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/rIL9e on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/rIL9e on line 3
Process exited with code 255.

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