What are the different functions in sorting an array?

The items of an array can be sorted by various methods.

• sort() - it sort arrays in ascending order
• rsort() - it sort arrays in descending order
• asort() - it sorts associative arrays in ascending order, according to the value
• ksort() - it sort associative arrays in ascending order, according to the key
• arsort() - it sorts associative arrays in descending order, according to the value
• krsort() - it sorts associative arrays in descending order, according to the key