Problems with sorting arrays

sorting problems with arrays!
$a =array (' Zhang San ' and ' Bai '), ' John Doe ' and ' the ' hundred and nine ', ' Harry ' and ' Qi Bai ', ' sun six ' = ' ba ', ' Chen Qi ' and ' "RMB '".

The array is sorted by the number size represented by the man, without changing the index, and the result of the final output should be the following format:

Array (' john doe ' = ' one Bai ', ' Zhang San ' and ' Bai ') ', ' Harry ' and ' Qi Bai ', ' Sun Six ' and ' ba ', ' Chen Qi ' and ' RMB ' "

Code as simple as possible I'm a novice, and the last sort with array sort function
------Solution--------------------

 $a = Array (
 ' zhang san ' = ' and ' Bai ') ', 
 ' John Doe ' and ' one Bai Jiu ', 
 ' harry ' = ' Qi bai ', 
 ' sun six ' = ' Ba ', 
 ' Chen Qi ' and ' RMB II ' 
); 
 
 $t = Array_map (' Cton ', $a); 
 Array_multisort ($t, $a); 
 Print_r ($a);  
 
 Function Cton ($s) {
 $dw = array (' pick ' up ' = 10 ', ' bai ' + = 100, ' thousand ' = 1000, ' million ' = 10000); 
 $digital = Array (' 0 ' = + 0, ' one ' = 1, ' II ' and ' 2 ', ' three ' = 3, ' ' ', ' = ' 4, ' 
 ' ' and ' 5 ', ' land ' = > 6, ' Qi ' and 7, ' BA ' and 8, ' JIU ' and 9 '; 
 $ar = Preg_split ('/(') Join (' 
------solution--------------------
 ', Array_keys ($DW)). ')/', 
 $s,-0, Preg_split_no_empty 
------Solution--------------------
 Preg_split_delim_capture); br> for ($i =0; $i 
   $res [] = $digital [$ar [$i]] * (Isset ($ar [$i +1]) * $DW [$ar [$i +1]]: 1); br>} 
 Return Array_sum ($res); 
} 

Array
(
    [John Doe] = a bai jiu pick
    [Zhang San]
    [Harry] = Qi Bai
    [Sun six] = Ba
    [Chen Qi] = restaurant RMB bai
)

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