Entry

How do you pass a function name as an argument to another function and then call the passed function? This would be similar to a function pointer in C

May 15th, 2000 10:16
Robert Ames, xendra .com, http://www.php.net/manual/functions.variable-functions.php

Believe it or not, this is really simple:
function do_something(){
  echo "done";
}
function something_else(){
  echo "we did something else";
}
function test_dynamic_functions() {
  $which_function = "do_something";
  $which_function();
  $which_function = "something_else";
  $which_function();
}

Of course you can pass command line parameters and stuff, if 
necessary.  The trick is to use the form "$variable_name()", making 
sure to have parenthesis after the variable name, and make sure that 
variable name has a valid function name.