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<?php class SerialDateTime extends DateTime implements JsonSerializable{ public function jsonSerialize(){ return $this->getTimestamp(); } } class StringDateTime extends DateTime{ public function __toString(){ return ''.$this->getTimestamp(); } } $j = new SerialDateTime; $s = new StringDateTime; //echo $j."\n"; echo $s."\n"; echo json_encode(array($j, $s));
Output for git.master
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/FaXks on line 5 1378912524 [1378912524,{"date":"2013-09-11 17:15:24.003662","timezone_type":3,"timezone":"Europe\/Amsterdam"}]
Output for git.master_jit
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/FaXks on line 5 1378912524 [1378912524,{"date":"2013-09-11 17:15:24.003756","timezone_type":3,"timezone":"Europe\/Amsterdam"}]
Output for rfc.property-hooks
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/FaXks on line 5 1378912524 [1378912524,{"date":"2013-09-11 17:15:24.003926","timezone_type":3,"timezone":"Europe\/Amsterdam"}]

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