1. PHP_script 2. Class_def 3. Class_mod 4. Interface_def 5. Member 6. Method 7. Signature 8. Method_mod 9. Formal_parameter 10. Type 11. Name_with_default 12. Attribute 13. Attr_mod 14. Statement 15. If 16. While 17. Do 18. For 19. Foreach 20. Switch 21. Switch_case 22. Break 23. Continue 24. Return 25. Static_declaration 26. Global 27. Declare 28. Directive 29. Try 30. Catch 31. Throw 32. Eval_expr 33. Nop 34. Expr 35. Literal 36. Assignment 37. Op_assignment 38. List_assignment 39. List_element 40. Nested_list_elements 41. Cast 42. Unary_op 43. Bin_op 44. Conditional_expr 45. Ignore_errors 46. Constant 47. Instanceof 48. Variable 49. Variable_name 50. Reflection 51. Target 52. Pre_op 53. Post_op 54. Array 55. Array_elem 56. Method_invocation 57. Method_name 58. Actual_parameter 59. New 60. Class_name 61. Commented_node 62. Identifier 63. Source_rep