Php check if string number
- Php check if string contains numbers
- Php check if string has numbers
- Php check if string contains numbers only
- Php check if string is numbers only
- Php check if string contains numbers and letters
- Php check if string starts with number
- Php check if string is integer number
- Php check if string is phone number
- Php check if string ends with number
- Php check if string contains only numbers and letters
- Php check if string contains only number
- Php check if string is float number
- Php regex check if string contains only numbers
- Php check if string contains numbers and special characters
- Php check if string is whole number