Using closures in an array

Question

I have a code similar to this:

$name = '_DBR'; // This comes from a function call

$this->_Inits['_DBR'] = function () { return get_library('Database')->getConnection('users', 'read'); };

$inits = $this->_Inits[$name];
$result = $inits(); // ERROR: Function name must be a string

return $result;

The error I get is:

Function name must be a string in xxxx

Is there any ways I could use an array to store multiple closures and is there a working way to access them?

I use PHP 5.4.3

It seems a little odd to me that you're calling the function by reference. When testing I have this warning: Strict Standards: Only variables should be assigned by reference — Tchoupi
– Tchoupi, Commented Sep 6, 2012 at 19:34

desimusxvii · Accepted Answer · 2012-09-06 19:33:03Z

4

This works fine for me in php 5.3.10.

$m = array();
$m['fish'] = function() { print "Hello\n"; };
$f = $m['fish'];
$f();

answered Sep 6, 2012 at 19:33

desimusxvii

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1 Comment

maaudet Over a year ago

Wow, on the actual code I had made a typo, that's why that it didn't work. Thanks for the answer!

Thomas · Accepted Answer · 2012-09-06 19:30:31Z

4

Yeah, use call_user_func instead.

answered Sep 6, 2012 at 19:30

Thomas

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