How to Pass a Variable Number of Arguments to PHP Functions?

Passing Variable Number of Arguments to PHP Functions

Question: How can I dynamically pass a variable number of arguments to a PHP function?

Answer: Consider using the call_user_func_array function, which allows you to pass an array of arguments to a function. If the number of arguments you need to pass depends on the length of an array, you can convert the arguments into an array and use that array as the second parameter of call_user_func_array.

For example, suppose you have the following function:

function test() {
  var_dump(func_num_args());
  var_dump(func_get_args());
}

You can pack your parameters into an array as follows:

$params = array(
  10,
  'glop',
  'test',
);

And then call the function using:

call_user_func_array('test', $params);

This will output the following:

int 3

array
  0 => int 10
  1 => string 'glop' (length=4)
  2 => string 'test' (length=4)

Essentially, the elements of the passed array will be received by the function as distinct parameters, providing the same effect as if the function had been called directly with the individual arguments.

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