Moving array element to top in PHP

Question

$arr = array(
    \'a1\'=>\'1\',
    \'a2\'=>\'2\'
);

I need to move the a2 to the top, as well as keep the a2 as a key how woul

Answer 1

You can also look at array_multisort This lets you use one array to sort another. This could, for example, allow you to externalize a hard-coded ordering of values into a config file.

In this example, after sorting, the first array will contain 0, 10, 100, 100. The second array will contain 4, 1, 2, 3. The entries in the second array corresponding to the identical entries in the first array (100 and 100) were sorted as well.

Outputs:

array(4) {
  [0]=> int(0)
  [1]=> int(10)
  [2]=> int(100)
  [3]=> int(100)
}
array(4) {
  [0]=> int(4)
  [1]=> int(1)
  [2]=> int(2)
  [3]=> int(3)
}