(PHP4 >= 4.0.1)
array_unique -- Removes duplicate values from an array
Description
array array_unique (array array)
     Array_unique() takes input
     array and returns a new array
     without duplicate values.
     Note that keys are preserved.
    
     
| Example 1. Array_unique() example | 
$input = array ("a" => "green", "red", "b" => "green", "blue", "red");
$result = array_unique ($input);
       | 
 | 
    
     This makes $result have array ("a" =>
     "green", "red", "blue");.