* [PHP] - Add FormDataProcessor to handle nested ModelInterface data
* Generating samples
* Updates php-nextgen and psr-18
* Adds tests
* Some more tests
* One last test
* Updating files
* Fixing diff
* Test fix
* Updating samples
* [PHP] - Add range HTTP code support
* Adding response body to 200
* Fix diff; update php-nextgen sample
* Working on unit tests
* Removes dangling files
* Finalize tests
* Remove dangling files
* Add tests for no response body exception
* Output of CLI commands per PR comments
* Rebuilding PHP examples, PSR-18
* Rebuilding PHP examples
* Adds explanation for ::flatten_array(); optimized array_is_list pollyfill
* [PHP] Fix converting objects to formdata
* flatten_array -> flattenArray to match code style
* Adds unit test
* Revert "Output of CLI commands per PR comments"
This reverts commit 2eaa93731c354c9cb64a41187ba25a1b271cfdea.
* Includes php-nextgen; tightens up ::toFormValue()
* Missing ArrayAccess import
* Adds test for refactored ObjectSerializer::toFormValue()
* fix #16797 and #15796 spring child constructor missing parent params
* root cause and update the DefaultCodegen.java to add missing property when with multi inheritance
* rollback SpringCodegen.java
* update samples
* rollback with master cause #16992 fixed this issue too
* still using orignal design
* catchup master
* catchup master
* catchup master
* fix
* add tests
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Co-authored-by: dabdirb <dabdirb@gmail.com>