feat(php): add PHP language support with tree-sitter analyzer [codewiki/src/be/dependency_analyzer/analyzers/php.py, codewiki/src/be/dependency_analyzer/analysis/analysis_service.py, codewiki/src/be/dependency_analyzer/analysis/call_graph_analyzer.py, codewiki/cli/utils/repo_validator.py, codewiki/cli/utils/validation.py, codewiki/src/be/dependency_analyzer/utils/patterns.py, codewiki/src/be/prompt_template.py, pyproject.toml]

Author: fabceolin

codewiki/cli/utils/repo_validator.py

@@ -27,6 +27,9 @@
     '.cxx',     # C++
     '.hxx',     # C++ headers
     '.cs',      # C#
+    '.php',     # PHP
+    '.phtml',   # PHP templates
+    '.inc',     # PHP includes
 }
 
 
@@ -57,7 +60,7 @@ def validate_repository(repo_path: Path) -> Tuple[Path, List[Tuple[str, int]]]:
     if not languages:
         raise RepositoryError(
             f"No supported code files found in {repo_path}\n\n"
-            "CodeWiki supports: Python, Java, JavaScript, TypeScript, C, C++, C#\n\n"
+            "CodeWiki supports: Python, Java, JavaScript, TypeScript, C, C++, C#, PHP\n\n"
             "Please navigate to a code repository or specify a custom directory:\n"
             "  cd /path/to/your/project\n"
             "  codewiki generate"

codewiki/cli/utils/validation.py

@@ -171,6 +171,7 @@ def detect_supported_languages(directory: Path) -> List[Tuple[str, int]]:
         'C': ['.c', '.h'],
         'C++': ['.cpp', '.hpp', '.cc', '.hh', '.cxx', '.hxx'],
         'C#': ['.cs'],
+        'PHP': ['.php', '.phtml', '.inc'],
     }
 
     # Directories to exclude from counting

codewiki/src/be/dependency_analyzer/analysis/analysis_service.py

@@ -295,16 +295,17 @@ def _filter_supported_languages(self, code_files: List[Dict]) -> List[Dict]:
         """
         Filter code files to only include supported languages.
 
-        Supports Python, JavaScript, TypeScript, C, C++, Go, and Rust.
+        Supports Python, JavaScript, TypeScript, Java, C#, C, C++, PHP, Go, and Rust.
         """
         supported_languages = {
             "python",
-            "javascript", 
+            "javascript",
             "typescript",
             "java",
             "csharp",
             "c",
             "cpp",
+            "php",
             "go",
             "rust",
         }
@@ -317,7 +318,7 @@ def _filter_supported_languages(self, code_files: List[Dict]) -> List[Dict]:
 
     def _get_supported_languages(self) -> List[str]:
         """Get list of currently supported languages for analysis."""
-        return ["python", "javascript", "typescript", "java", "csharp", "c", "cpp"]
+        return ["python", "javascript", "typescript", "java", "csharp", "c", "cpp", "php"]
 
     def _cleanup_repository(self, temp_dir: str):
         """Clean up cloned repository."""

codewiki/src/be/dependency_analyzer/analysis/call_graph_analyzer.py

@@ -131,6 +131,8 @@ def _analyze_code_file(self, repo_dir: str, file_info: Dict):
                 self._analyze_c_file(file_path, content, repo_dir)
             elif language == "cpp":
                 self._analyze_cpp_file(file_path, content, repo_dir)
+            elif language == "php":
+                self._analyze_php_file(file_path, content, repo_dir)
             # else:
             #     logger.warning(
             #         f"Unsupported language for call graph analysis: {language} for file {file_path}"
@@ -298,6 +300,28 @@ def _analyze_csharp_file(self, file_path: str, content: str, repo_dir: str):
         except Exception as e:
             logger.error(f"Failed to analyze C# file {file_path}: {e}", exc_info=True)
 
+    def _analyze_php_file(self, file_path: str, content: str, repo_dir: str):
+        """
+        Analyze PHP file using tree-sitter based analyzer.
+
+        Args:
+            file_path: Relative path to the PHP file
+            content: File content string
+            repo_dir: Repository base directory
+        """
+        from codewiki.src.be.dependency_analyzer.analyzers.php import analyze_php_file
+
+        try:
+            functions, relationships = analyze_php_file(file_path, content, repo_path=repo_dir)
+
+            for func in functions:
+                func_id = func.id if func.id else f"{file_path}:{func.name}"
+                self.functions[func_id] = func
+
+            self.call_relationships.extend(relationships)
+        except Exception as e:
+            logger.error(f"Failed to analyze PHP file {file_path}: {e}", exc_info=True)
+
     def _resolve_call_relationships(self):
         """
         Resolve function call relationships across all languages.
@@ -382,6 +406,8 @@ def _generate_visualization_data(self) -> Dict:
                 node_classes.append("lang-c")
             elif file_ext in [".cpp", ".cc", ".cxx", ".hpp", ".hxx"]:
                 node_classes.append("lang-cpp")
+            elif file_ext in [".php", ".phtml", ".inc"]:
+                node_classes.append("lang-php")
 
             cytoscape_elements.append(
                 {