PHP Functions Essential Reference

create_function

string create_function(string arguments, string code) 

arguments	String containing the arguments to be passed to the function
code	String containing the code for the function

Creates a function and returns a unique name for it.

Returns:

Unique name for the function; FALSE on error

Description:

create_function() provides an alternate way to create a function. Functions created via create_function() are given arbitrary unique names. Functions created in this fashion are useful for a variety of tasks, including creating function definitions at runtime and creating callback functions for use in functions such as array_walk(), register_shutdown_function(), and usort().

The first argument should be a comma-separated list of the ...