php闭包实例5.3

Question

This a little hard for me to explain, but I'll try my best. I'm trying to find the best way to create an instance of a closure. Below is an example of how I am creating and accessing the closure:

$myvar->parse('var1, var2', function () {
  //my code
});

I then loop through the strings by exploding the comma and put it into an array like so.

$array = array();
$array['var1'] = closure();
$array['var2'] = closure();

Later on in my code I use call_user_func to execute the function.

Now, the issue I'm having is that when I access $array['var1'] it calls the closure without any problem.

But when I access $array['var2'] it does nothing. I've been looking at diverse websites for a while without much luck. Do I need to use pointers (tried without success) or create a new instance of it somehow?

I currently only have access to php 5.3 on my server, so I can't use any of the awesome stuff in 5.4 :(

I'd really appreciate any feedback and advice you may have.

Answer 1

Yes your question isn't clear. You knew it so I wonder why you didn't explained better.

Anyway if you need to run a closure stored inside $array['var2'] you have to specifically put in your code something like this:

$array['var2'] = function(){
//> Code
};

That's the only way

By guessing at your code, your function parse should like:

function parse($keys,$func) {
 $array = array();
 foreach(explode(',',$keys) as $v) {
   $array[trim($v)] = $func;  //> trim important here!
 }
}

Most likely you have forgot to trim($v)