Oracle Database 10g Express Edition PHP Web Programming

Sorting Arrays

Arrays are lists, and you will sort them differently, depending on the end-user requirements. PHP provides a library of predefined functions to sort arrays, as shown in Table 6-4. You will review the function definitions before examining each in depth.

Table 6-4. Predefined Sorting Functions

Function	Description and Pattern
arsort()	The function takes two formal parameters: the first is an array, and the second is a sorting flag. It sorts in reverse or descending order, preserving the native keys of the original array, and has this pattern: void arsort(array var [, int sort_flag])
asort()	The function takes two formal parameters: the first is an array, and the second is a sorting flag. It sorts in ascending order, preserving the native ...