Check if string php
- Check if php string contains
- Check if string empty php
- Check if string contain php
- Check if string includes php
- Check if string exists php
- Check if string startswith php
- Check if string equals php
- Check if string is number php
- Check if variable is string php
- Check if string in array php
- Check if string is json php
- Check if string is int php
- Check if string is date php
- Check if value is string php
- Check if string is numeric php