updated CODEOWNERS for PHP

Author: Jens-G

.github/CODEOWNERS

@@ -50,11 +50,12 @@
 /compiler/cpp/src/thrift/generate/t_html_generator.*         @Jens-G
 /compiler/cpp/src/thrift/generate/t_markdown_generator.*     @Jens-G
 /compiler/cpp/src/thrift/generate/t_rb_generator.*           @kpumuk
+/compiler/cpp/src/thrift/generate/t_php_generator.*          @sveneld
 
 # Generators without a dedicated committer:
 # t_cl_generator.*, t_d_generator.*, t_dart_generator.*,
 # t_erl_generator.*, t_lua_generator.*, t_ocaml_generator.*,
-# t_perl_generator.*, t_php_generator.*,
+# t_perl_generator.*, 
 # t_st_generator.*, t_javame_generator.*, t_swift_generator.*,
 # t_json_generator.*, t_xml_generator.*, t_xsd_generator.*
 
@@ -115,6 +116,11 @@
 # Kotlin
 /lib/kotlin/                  @jimexist
 
+# PHP
+/lib/php/                     @sveneld       # Volodymyr Panivko
+/test/php/                    @sveneld
+/tutorial/php/                @sveneld
+
 # Python
 /lib/py/                      @mhlakhani
 /test/py/                     @mhlakhani