PHP--Array sorting

PHP Array sorting function:

Sort ()-ascending order of arrays

Rsort ()-Descending order of the array

Asort ()-Sets the array in ascending order based on the values of the associative arrays

Ksort ()-an array is sorted in ascending order based on the keys of the associative arrays

Arsort ()-sorts arrays in descending order based on the values of the associative array

Krsort ()-Sorts the arrays in descending order based on the keys of the associative array

These functions are directly manipulating the original array, modifying the array directly

Sort ()-ascending order of arrays

1, the elements in the $cars array in ascending alphabetical order:

<? PHP $cars=array("Volvo", "BMW", "Toyota"); Sort ($cars);? >

Results:

BMW
Toyota
Volvo

2, the elements in the $numbers array in ascending order of numbers

<? PHP $numbers=array(4,6,2,22,11); Sort ($numbers);? >

Results:

2
4
6
11
22

Rsort ()-Descending order of the array

Just the opposite of sort ()

1. Arrange the elements in the $cars array in descending alphabetical order

2. Sort the elements in the $numbers array in descending order of numbers

Ksort ()-Sorts the array in ascending order based on the key

The associative array is sorted in ascending order based on the key of the array

<? PHP $age=array("Peter" and "+", "Ben" = "Notoginseng", "Joe" and "" "); Ksort ($age);? >

Results:

Key=ben, value=37
Key=joe, value=43
Key=peter, value=35

First B and then J again p

Krsort ()-descending order of arrays based on the keys of the array

The associative array is sorted in descending order based on the key of the array

<? PHP $age=array("Peter" and "+", "Ben" = "Notoginseng", "Joe" and "" "); Krsort ($age);? >

Results:

Key=peter, value=35
Key=joe, value=43
Key=ben, value=37

Asort ()-Sorts the array in ascending order based on the values of the arrays

The associative array is sorted in ascending order based on the value of the array

<? PHP $age=array("Peter" and "+", "Ben" = "Notoginseng", "Joe" and "" "); Asort ($age);? >

Results:

Key=peter, value=35
Key=ben, value=37
Key=joe, value=43

Arsort ()-sorts arrays in descending order based on the values of the array

The associative array is sorted in descending order based on the value of the array

<? PHP $age=array("Peter" and "+", "Ben" = "Notoginseng", "Joe" and "" "); Arsort ($age);? >

Results:

Key=joe, value=43
Key=ben, value=37
Key=peter, value=35

PHP--Array sorting