create an array of all constant of a class?

Question

I was working with a class where almost 20 constant are defined, as i want all these constant value in an array, i just want to know

is there any method which create an array of all constant of a class?

I tried with compact BUT it does not work with constants.

class Alpha
{
 const ONE = 'fixone'; 
 const TWO = 'fix_two';
 const THREE = 3     

   public function __construct()
   {
     protected $arr_constant = compact(ONE,TWO,THREE); // gives FATAL Error
     // is there any method which collect all consant and create an array?
     protected $arr_contact = get_all_constant(__CLASS__); 
     var_dump($arr_constant);
   }
}

possible duplicate of [Can I get CONST's defined on a PHP class?](http://stackoverflow.com/questions/956401/can-i-get-consts-defined-on-a-php-class) — deceze, Aug 29 '12 at 09:55

score 4 · Accepted Answer · answered Aug 29 '12 at 09:42

4

$ref = new ReflectionClass('Alpha');
var_dump($ref->getConstants());

answered Aug 29 '12 at 09:42

deceze

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is `ReflectionClass` is inbuilt or default library in php 5+? – xkeshav Aug 29 '12 at 09:43
+1 its working perfect. i called `$ref = new ReflectionClass(__CLASS__);` in constructor – xkeshav Aug 29 '12 at 10:09
its is mentioned on documents that **This function is currently not documented; only its argument list is available.** May I use this in live project or is there any chances of depreciation – xkeshav Aug 29 '12 at 10:10
1

It's been there for quite a while and deprecation would make little sense, since it's useful and there's no replacement I know of. So yes, it's fine to use. It's simply not well documented, since it's something of a meta-function, the naming is pretty self-explanatory and if you're using it you should know what you're doing. – deceze Aug 29 '12 at 10:15

score 2 · Answer 2 · answered Aug 29 '12 at 09:41

2

Use: http://php.net/manual/en/function.get-defined-constants.php

And: http://php.net/manual/en/reflectionclass.getconstants.php

answered Aug 29 '12 at 09:41

Ariel

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That gives you *all* constants though, not only specific class constants. – deceze Aug 29 '12 at 09:43
if we call this function in `Alpha`class then? – xkeshav Aug 29 '12 at 09:44
@deceze Added another link for class constants. – Ariel Aug 29 '12 at 09:44

create an array of all constant of a class?

2 Answers2

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