php - get top repetitions from an array

I have an array which is of the form

array(23) { [0]=> string(13) "Richmond Town" [1]=> string(11) "Tasker Town" [2]=> string(18) "Vittal Mallya Road" [3]=> string(15) "Shanthala Nagar" [4]=> string(19) "Sampangi Rama Nagar" [5]=> string(9) "Jayamahal" [6]=> string(15) "Shanthala Nagar" [7]=> string(19) "Sampangi Rama Nagar" [8]=> string(15) "Shanthala Nagar" [9]=> string(15) "Shanthala Nagar" [10]=> string(11) "Nehru Nagar" [11]=> string(13) "Richmond Town" [12]=> string(21) "Koramangala 1st Block" [13]=> string(14) "Cleveland Town" [14]=> string(22) "Yellappa Chetty Layout" [15]=> string(13) "HAL 2nd Stage" [16]=> string(15) "Shanthala Nagar" [17]=> string(11) "Koramangala" [18]=> string(11) "Koramangala" [19]=> string(19) "Koramangala 6 Block" [20]=> string(11) "5th A Block" [21]=> string(15) "Pulikeshi Nagar" [22]=> string(16) "Cambridge Layout" } 

Now I want the top 5 repetitions from this array. Please help me out.