Check if array has php

- Check if array has key php
- Check if array has value php
- Check if array has index php
- Check if array has property php
- Check if array has element php
- Check if array has length php
- Check if array has duplicate values php
- Check if array has same values php
- Check if array has empty values php
- Check if array has specific key php
- Check if array has null values php
- Check if array php
- Php check if array has keys
- Check if array key has value php
- Php check if array has at least one element