Linked Questions

I have the following functions. WordPress functions, but this is really a PHP question. They sort my $term objects according to the artist_lastname property in each object's metadata. I want to pass a ...

I am using array_map function in my php application. I defined the array_map function like this. $ratingID = $this->db->insert_id(); $rated_item_array = array_map(function ($a) { ...

I want to write a function that does some dirty work logging a transaction, but the anonymous function scope does not seem to register the parent scope $db and $value variables. How can I pass the ...

I want my function to access an outside variable—from its parent function specifically. However, using the global keyword sets too broad a scope; I need to limit it. How do I get this code to spit out ...

I'm trying to get counts of array values greater than n. I'm using array_reduce() like so: $arr = range(1,10); echo array_reduce($arr, function ($a, $b) { return ($b > 5) ? ++$a : $a; }); This ...

In the following code the callback function passed to wrap_map can't see the argument in the outer function, why? (see code comment for detail) public static function wrap_implode($ar, $wrap, $delim){...

For example I have the following code: function a($param) { function b() { echo $param; } b(); } a("Hello World!"); That throws an E_NOTICE error because $param is of course undefined (in ...

I'm trying to use $variable inside my callback function. I pass it to another function like this: functionName("egTraders_ItemDataBound"), inside that function I assign it to a variable and the call ...

class myClass { $myVariable = 'myCallback'; function myFunction() { $body = false; $callback = $this->myVariable; function test($handle, $line) { ...

I have this function in php (laravel): public static function isUserParticipatesInTournament($tourId, $userId) { var_dump($userId); //dumped $user = User::find($userId); ...

I have a Laravel ->each() function inside a loop. I want to be able to get at the loop variables from within the each function. foreach ($stringsArray as $string) { if (!empty($string)...

I am trying to understand Wordpress structure in more details. As advised to me, using global keyword is not a good idea. Here is what I am trying to accomplish: Inside functions.php $affID = '...

In the below function, $input['num_opt'] cannot access $input $input = $request->all(); $validator->after(function($validator) { $num_opt = $input['num_opt']; ...

I'm using a callback function inside an other function and I need to access a variable from this enclosing function but don't know how to do that. Here is an example: function outer($flag) { $...

I have used PHP for a very long time, but not really used callbacks very much until quite recently. In the following code, the callback (the example is QueryPath, in case you're wondering, but it ...