Before sort:<br /><br /><pre>Array
(
    [a] => 13
    [b] => 21
    [c] => 32
    [d] => 9
    [e] => 13
    [f] => 10
    [g] => 0
    [h] => 1
    [i] => 16
    [j] => 6
    [k] => 20
    [l] => 0
    [m] => 0
    [n] => 1
    [o] => 2
    [p] => 20
    [q] => 4
    [r] => 12
    [s] => 1
    [t] => 0
    [u] => 6
    [v] => 4
    [w] => 0
    [x] => 2
    [y] => 1
    [z] => 4
)
</pre><br /> after sort<br /><pre>
Array
(
    [l] => 0
    [t] => 0
    [w] => 0
    [g] => 0
    [m] => 0
    [y] => 1
    [s] => 1
    [n] => 1
    [h] => 1
    [x] => 2
    [o] => 2
    [v] => 4
    [z] => 4
    [q] => 4
    [u] => 6
    [j] => 6
    [d] => 9
    [f] => 10
    [r] => 12
    [e] => 13
    [a] => 13
    [i] => 16
    [p] => 20
    [k] => 20
    [b] => 21
    [c] => 32
)
</pre>

Array
(
    [0] => a
    [a] => 0
    [1] => b
    [b] => 1
    [2] => c
    [c] => 2
    [3] => d
    [d] => 3
    [4] => e
    [e] => 4
    [5] => f
    [f] => 5
    [6] => g
    [g] => 6
    [7] => h
    [h] => 7
    [8] => i
    [i] => 8
    [9] => j
    [j] => 9
    [10] => k
    [k] => 10
    [11] => l
    [l] => 11
    [12] => m
    [m] => 12
    [13] => n
    [n] => 13
    [14] => o
    [o] => 14
    [15] => p
    [p] => 15
    [16] => q
    [q] => 16
    [17] => r
    [r] => 17
    [18] => s
    [s] => 18
    [19] => t
    [t] => 19
    [20] => u
    [u] => 20
    [21] => v
    [v] => 21
    [22] => w
    [w] => 22
    [23] => x
    [x] => 23
    [24] => y
    [y] => 24
    [25] => z
    [z] => 25
)
25<hr />kqerejebcppcjcrkieacuzbkrvpkrbcibqcarbjcvfcupkriofkpacuzqepbkrxpeiieabdkpbcpfcdccafieabdkpbcpfeqpkazbkrhaibkapcciburccdkdccjcidfuixpafferbiczdfkabicbbenefcupjcvkabpcydccdpkbcocperkivkscpicbrkijpkabi<br /> OCANA DATER REDEN OSAIE UXTON FRONT ESTCE INTDE FLEUR ONSGL ORIEU XCART ONBRA SSAIT PORTE RLEPE EILSA ITPOR TERLA CROIX TONHI STOIR EESTU NEEPO PEEDE SPLUS BRILL ANTSE XPLOI TSETT AVALE URDEF OITRE MPEEP ROTEG ERANO SFOYE RSETN OSDRO ITS <br />