Sorting in ascedning order
-83 -29 -12 4 5 17 17 32 100
Sorting in descending order
100 32 17 17 5 4 -12 -29 -83

Original Array:
Mike=>28
Peter=>35
Ben=>28
Joe=>18
Kelly=>28

Sort in ascending order for associative array by values
Joe=>18
Mike=>28
Ben=>28
Kelly=>28
Peter=>35

Sort in descending order for associative array by values
Peter=>35
Ben=>28
Mike=>28
Kelly=>28
Joe=>18

Sort in ascending order for associative array by keys
Ben=>28
Joe=>18
Kelly=>28
Mike=>28
Peter=>35

Peter=>35
Mike=>28
Kelly=>28
Joe=>18
Ben=>28

Sort in a speical way which may not work!!!
Sorted by age in ascending order. If the ages are the same, sort by names in ascending order.
Joe=>18
Ben=>28
Kelly=>28
Mike=>28
Peter=>35

Sorted by age in ascending order. If the ages are the same, sort by names in descending order.
Joe=>18
Kelly=>28
Mike=>28
Ben=>28
Peter=>35

Sort in ascending order using index array by values, which would lose all the key values
0=>18
1=>28
2=>28
3=>28
4=>35

Original Data:

Name	Age	Gender	Grade
Mike	22	Male	75
Jason	18	Male	55
Jenny	25	Female	95
Megan	18	Female	85
Tom	34	Male	75
Lilly	21	Female	75
Alex	18	Male	88
Amy	18	Female	75

Sorted in ascending order by names

Name	Age	Gender	Grade
Alex	18	Male	88
Amy	18	Female	75
Jason	18	Male	55
Jenny	25	Female	95
Lilly	21	Female	75
Megan	18	Female	85
Mike	22	Male	75
Tom	34	Male	75

Sorted in descending order by ages

Name	Age	Gender	Grade
Tom	34	Male	75
Jenny	25	Female	95
Mike	22	Male	75
Lilly	21	Female	75
Megan	18	Female	85
Jason	18	Male	55
Amy	18	Female	75
Alex	18	Male	88

Sorted in ascending order by grades

Name	Age	Gender	Grade
Jason	18	Male	55
Amy	18	Female	75
Lilly	21	Female	75
Mike	22	Male	75
Tom	34	Male	75
Megan	18	Female	85
Alex	18	Male	88
Jenny	25	Female	95

Sorted in ascending order by ages. If ages are the same, then sorted by grades in ascending oreder

Name	Age	Gender	Grade
Jason	18	Male	55
Amy	18	Female	75
Megan	18	Female	85
Alex	18	Male	88
Lilly	21	Female	75
Mike	22	Male	75
Jenny	25	Female	95
Tom	34	Male	75

Sorted in ascending order by grade. If grades are the same, then sorted by gender in ascending oreder. If genders are the same, then sorted by age in ascending oreder.

Name	Age	Gender	Grade
Jason	18	Male	55
Amy	18	Female	75
Lilly	21	Female	75
Mike	22	Male	75
Tom	34	Male	75
Megan	18	Female	85
Alex	18	Male	88
Jenny	25	Female	95

Sort 1D associative array using two attributes.
Sorted by age in descending order. If the ages are the same, sort by names in descending order.
4=>35
3=>28
2=>28
1=>28
0=>18
Sorted in ascending order by 2nd column. If the values of the 2nd column are the same, then sorted by 5th column in descending oreder.

Name	Age	Gender	Grade
91	90	97	94	97	91	97	98	DEKU	100
95	90	97	94	97	96	93	96	AIQP	95
97	90	100	97	92	93	92	93	NXCF	93
100	93	96	98	94	93	93	90	PYOL	91
94	93	98	90	94	100	95	98	XGNB	90
94	94	92	99	96	92	96	97	WAXS	90
97	95	90	90	100	100	99	91	LWDU	98
97	95	98	91	91	94	93	91	RIIU	97
100	95	95	100	90	99	94	95	XRZC	100
100	96	94	96	98	91	90	94	YKUR	94
91	96	98	91	91	95	93	91	KCOS	96
94	97	91	96	99	92	97	91	PGUO	94
92	97	98	93	99	96	99	97	ENTR	100
94	97	90	97	92	92	95	95	UGWA	96
93	98	95	90	98	94	90	92	WJZO	96
93	98	96	98	94	98	91	100	NPKN	100
91	98	100	94	93	95	94	100	AZXL	91
97	98	91	94	91	92	97	100	MOTX	96
99	99	98	100	99	100	98	98	IXSF	93
96	100	93	93	96	90	91	96	HZLL	92

Sorted in ascending order by 2nd column. If the values of the 2nd column are the same, then sorted by 5th column in descending oreder. If the values of the 5th column are the same, then sorted by 9th column in descending oreder.

Name	Age	Gender	Grade
91	90	97	94	97	91	97	98	DEKU	100
95	90	97	94	97	96	93	96	AIQP	95
97	90	100	97	92	93	92	93	NXCF	93
94	93	98	90	94	100	95	98	XGNB	90
100	93	96	98	94	93	93	90	PYOL	91
94	94	92	99	96	92	96	97	WAXS	90
97	95	90	90	100	100	99	91	LWDU	98
97	95	98	91	91	94	93	91	RIIU	97
100	95	95	100	90	99	94	95	XRZC	100
100	96	94	96	98	91	90	94	YKUR	94
91	96	98	91	91	95	93	91	KCOS	96
94	97	91	96	99	92	97	91	PGUO	94
92	97	98	93	99	96	99	97	ENTR	100
94	97	90	97	92	92	95	95	UGWA	96
93	98	95	90	98	94	90	92	WJZO	96
93	98	96	98	94	98	91	100	NPKN	100
91	98	100	94	93	95	94	100	AZXL	91
97	98	91	94	91	92	97	100	MOTX	96
99	99	98	100	99	100	98	98	IXSF	93
96	100	93	93	96	90	91	96	HZLL	92