Write a PHP script to do a multi-dimensional difference, i.e. returns values of the first array that are not in the second array

<?php
$color1 = array( array('Red', 80), array('Green', 70), array('white', 60) ); 
        
$color2 = array( array('Green', 70), array('Black', 95) ); 
        
$color = array_udiff($color1, $color2, create_function( 
    '$a,$b', 'return strcmp( implode("", $a), implode("", $b) ); ') 
    ); 
        
print_r($color);
?>

Sample Output:

Array                                                       
(                                                           
    [0] => Array                                            
        (                                                   
            [0] => Red                                      
            [1] => 80                                       
        )                                                   
                                                            
    [2] => Array                                            
        (                                                   
            [0] => white                                    
            [1] => 60                                       
        )                                                   
                                                            
)