How to Sort Associative Arrays in PHP

In this lesson I will show you how to sort associative arrays in PHP.

The 4 functions we will use are:

• asort()

• ksort()

• arsort()

• krsort()

Consider the following associative array containing names and ages. 

The name is known as the key and the age is known as the value in the key/value pair.

ksort()

We use ksort() to sort the array by the key in ascending order as follows:

The output will be:

asort()

We use asort() to sort the array by the value in ascending order as follows:

The output will be:

krsort()

We use krsort() to sort the array by the key in descending order as follows:

The output will be:

arsort()

We use arsort() to sort the array by the value in descending order as follows:

The output will be:

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