<?php 

    for($i=1;$i<=4;$i++) {
        $function = create_function('$i', 'echo "Calling function with argument {$i} \n";');
      
        // Lets Call last created function
        $function($i);
    }

Calling function with argument 1 
Calling function with argument 2 
Calling function with argument 3 
Calling function with argument 4