Sort php array by key

- Sort php array by key value
- Php sort array by key descending
- Php sort array by key alphabetically
- Php sort array by key ascending
- Php sort array by key desc
- Php sort array by key multidimensional
- Php sort array by key value descending
- Php sort array by key date
- Php sort array by key length
- Php sort array by keys of another
- Php sort array by key name
- Php sort array by key case insensitive
- Php sort array by key numeric
- Php sort associative array by key value
- Php sort multidimensional array by key value