> For the complete documentation index, see [llms.txt](https://news.telosys.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://news.telosys.org/version-4.1.0/target-languages.md).

# Target languages

### Kotlin 

Kotlin is a new predefined target language added in version 4.1.0 

It supports nullable types.

### C\#

C# target language has been improved 

New temporal types have been added : 

* **DateOnly** ( Day / Month / Year )  
* **TimeOnly** ( Hour / Min / Sec / NanoSec )

Nullable types are now supported for C#

### PHP

Typed class properties have been added in PHP 7.4 

So it's now possible to generate PHP code with the type corresponding to the attribute.

The type can be : string, bool, int, float or DateTime

Nullable types are supported for PHP

### Nullable types 

Nullable types are now automatically provided for the languages concerned ( C#, PHP and Kotlin )

A nullable type is a type with a "nullable mark" at the end or at the beginning of the type,   \
for example :  

* "int**?**" and "string**?**" for C# 
* "**?**int" and "**?**string" for PHP

The "nullable mark" is automatically added to the type if : \
   the attribute is 'nullable' \
   and \
   $env.typeWithNullableMark  is set to TRUE