Online PHP editor | output for b9g9h

@ 2016-07-18T17:42:47Z

<?php
class MyError implements \JsonSerializable
{
	private $name;
	private $code;
	private $msg;
	
	public function __construct($errorName, $errorCode, $errorMSG)
	{
		$this->name = $errorName;
		$this->code = $errorCode;
		$this->msg = $errorMSG;
	}
	
	public function jsonSerialize()
	{
		return get_object_vars($this);
		// or
		return [
			'name' => $this->name, 
			'code' => $this->code, 
			'msg' => $this->msg
		];
	}
}
$error = new MyError("Page not found", 404, "Unfortunately, the page does not exist");
echo json_encode($error);

Output for 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14: Deprecated: Return type of MyError::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/b9g9h on line 15 {"name":"Page not found","code":404,"msg":"Unfortunately, the page does not exist"}
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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: {"name":"Page not found","code":404,"msg":"Unfortunately, the page does not exist"}

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