1	<?php
2	namespace Fdsn\Webservices\Event\Structs;
3
4	/**
5	* Data structure to handle Id value
6	*
7	* @param int $id fdsn quake id
8	*/
9	class Id{
10	private int $value;
11
12	function __construct( int $value) {
13	if( ! $this->isValid($value) )
14	throw new \InvalidArgumentException("Id value invalid");
15
16	$this->value = $value;
17	}
18
19	/**
20	* Get id value as string
21	* @return string     Depth value in "%.2f km" format
22	*/
23	function __toString(){ return sprintf("%d", $this->value); }
24
25	/**
26	* Get id value
27	* @return int     fdsn quake id
28	*/
29	public function value():int{ return $this->value; }
30
31	/**
32	* Check if id value is valid
33	* @return bool     True if is valid, false otherwise
34	*/
35	private function isValid(int $value):bool { return $value > 0; }
36
37	/**
38	* Compare two objects
39	* @return bool        true are equals, false otherwise
40	*/
41	public function equals(self $other):bool{ return $this->value == $other->value; }
42	}

---

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Id->__construct

12	function __construct( int $value) {
13	if( ! $this->isValid($value) )

14	throw new \InvalidArgumentException("Id value invalid");

16	$this->value = $value;
17	}

Id->__toString

23	function __toString(){ return sprintf("%d", $this->value); }

Id->equals

41	public function equals(self $other):bool{ return $this->value == $other->value; }

Id->isValid

35	private function isValid(int $value):bool { return $value > 0; }

Id->value

29	public function value():int{ return $this->value; }