PHP sort multidimensional array by value

How can I sort this array by the value of the "order" key? Even though the values are currently sequential, they will not always be.

How to sort an array of objects with jquery or javascript

I have an array of objects:

var array = [(id, name, value),(id, name, value)]; //and so on

Remove the parent array key in PHP?

I have an array structure like this :

Multi-Dimensional array count in PHP

I have a multi-dimentional array set up as follows