| Section | Subsection | Topic | Supported |
|---|
| 10. Basic syntax | Escaping from HTML | Basic Escaping | yes (alpha) |
| Advanced Escaping | yes (alpha) |
| Instruction separation | Semicolons | yes (alpha) |
| Leaving off last block separator | yes (alpha) |
| Comments | PHP supports C, C++ and Unix shell-style | yes (alpha) |
| 11. Types | Booleans | boolean type | yes (alpha) |
| converting to boolean | yes (alpha) |
| Integers | integer type | yes (alpha) |
| decimal (10-based) notation, | yes (alpha) |
| hexadecimal and octal | yes (alpha) |
| Integer overflow (to float) | yes (alpha) |
| converting to integer | yes (alpha) |
| Strings | string type | yes (alpha) |
| string literal - single quote | yes (alpha) |
| string literal - double quote | yes (alpha) |
| string literal - heredoc | yes (alpha) |
| variable handling - simple syntax | yes (alpha) |
| variable handling - complex syntax | yes (alpha) |
| converting to string | yes (alpha) |
| string conversion to numbers | yes (alpha) |
| Arrays | array type | yes (alpha) |
| array() syntax | yes (alpha) |
| square-bracket syntax | yes (alpha) |
| converting to arrays | yes (alpha) |
| Objects | object type | yes (alpha) |
| object initialization | yes (alpha) |
| converting to object | yes (alpha) |
| Resource | resource type | yes (alpha) |
| freeing resources | yes (alpha) |
| NULL | NULL value | yes (alpha) |
| Type Juggling | type juggling | yes (alpha) |
| type casting | yes (alpha) |
| 12. Variables | Basics | variables | yes (alpha) |
| assign by value | yes (alpha) |
| assign by reference | yes (alpha) |
| Predefined variables | superglobals concept | yes (alpha) |
| GLOBALS | yes (alpha) |
| Variable scope | Local scope | yes (alpha) |
| global keyword | yes (alpha) |
| static | yes (alpha) |
| Variable variables | variable variables | yes (alpha) |
| 13. Constants | Magic constants | LINE | yes (alpha) |
| FILE | yes (alpha) |
| FUNCTION | yes (alpha) |
| CLASS | yes (alpha) |
| METHOD | yes (alpha) |
| 14. Expressions | Expressions | Expressions | yes (alpha) |
| 15. Operators | Operator Precedence | Operator precedence | yes (alpha) |
| Arithmetic Operators | Negation | yes (alpha) |
| Addition | yes (alpha) |
| Subtraction | yes (alpha) |
| Multiplication | yes (alpha) |
| Division | yes (alpha) |
| Modulus | yes (alpha) |
| Assignment Operators | = | yes (alpha) |
| Combined binary arithmatic | yes (alpha) |
| Combined array union | yes (alpha) |
| Combined string operator | yes (alpha) |
| Bitwise Operators | And | yes (alpha) |
| Or | yes (alpha) |
| Xor | yes (alpha) |
| Not | yes (alpha) |
| Shift left | yes (alpha) |
| Shift right | yes (alpha) |
| Comparison Operators | Equal | yes (alpha) |
| Identical | yes (alpha) |
| Not equal (greater than less than) | yes (alpha) |
| Not equal (not equal) | yes (alpha) |
| Not identical | yes (alpha) |
| Less than | yes (alpha) |
| Greater than | yes (alpha) |
| Less than or equal | yes (alpha) |
| Greater than or equal | yes (alpha) |
| Ternary | yes (alpha) |
| Error Control Operators | Error control operator | yes (alpha) |
| Incrementing-Decrementing Operators | Pre-increment | yes (alpha) |
| Post-increment | yes (alpha) |
| Pre-decrement | yes (alpha) |
| Post-decrement | yes (alpha) |
| Logical Operators | And | yes (alpha) |
| Or | yes (alpha) |
| Xor | yes (alpha) |
| Not | yes (alpha) |
| And | yes (alpha) |
| Or | yes (alpha) |
| String Operators | Concatenation | yes (alpha) |
| Array Operators | Union | yes (alpha) |
| Equality | yes (alpha) |
| Identity | yes (alpha) |
| Inequality (Not equal) | yes (alpha) |
| Inequality (less than greater than) | yes (alpha) |
| Non-identity | yes (alpha) |
| Type Operators | instanceof | yes (alpha) |
| 16. Control Structures | if | if | yes (alpha) |
| else | else | yes (alpha) |
| elseif | elseif | yes (alpha) |
| Alternative syntax for control structures | Alternative syntax | yes (alpha) |
| while | while | yes (alpha) |
| do-while | do-while | yes (alpha) |
| for | for | yes (alpha) |
| foreach | foreach on arrays | yes (alpha) |
| foreach on objects | yes (alpha) |
| break | break (with numeric argument) | yes (alpha) |
| continue | continue (with numeric argument) | yes (alpha) |
| switch | switch | yes (alpha) |
| declare | declare(ticks) | yes (alpha) |
| return | return from global scope | yes (alpha) |
| return from include()ed and required()ed | yes (alpha) |
| return from function | yes (alpha) |
| require() | require | yes (alpha) |
| include() | include | yes (alpha) |
| require_once() | require_once | yes (alpha) |
| include_once() | include_once | yes (alpha) |
| include() | conditional include, requires | yes (alpha) |
| exit() | exit | yes (alpha) |
| die() | die | yes (alpha) |
| 17. Functions | User-defined functions | function in function | yes (alpha) |
| recursive function (lt 200 recursion levels) | yes (alpha) |
| Function arguments | pass by value | yes (alpha) |
| pass by reference | yes (alpha) |
| default arguments | yes (alpha) |
| variable-length argument lists | yes (alpha) |
| Returning values | {return - see control structures} | yes (alpha) |
| Variable functions | variable function | yes (alpha) |
| variable method | yes (alpha) |
| 19. Classes and Objects (PHP 5) | The Basics | simple class definition | yes (alpha) |
| $this | yes (alpha) |
| class member default values | yes (alpha) |
| new | yes (alpha) |
| extends | yes (alpha) |
| Autoloading Objects | __autoload | no |
| Constructors and Destructors | __construct | yes (alpha) |
| constructor same name as class | yes (alpha) |
| __destruct | no |
| Visibility | public member | yes (alpha) |
| private member | yes (alpha) |
| protected member | yes (alpha) |
| public method | yes (alpha) |
| private method | yes (alpha) |
| protected method | yes (alpha) |
| declaring with var (synonym for public) | yes (alpha) |
| Scope Resolution Operator | Double colon from outside class | yes (alpha) |
| parent | yes (alpha) |
| self | yes (alpha) |
| Static Keyword | static member | yes (alpha) |
| static method | yes (alpha) |
| Class Constants | class constant | yes (alpha) |
| Class Abstraction | abstract class | yes (alpha) |
| Object Interfaces | interface | yes (alpha) |
| implements | yes (alpha) |
| Overloading | __set | yes (alpha) |
| __get | yes (alpha) |
| __isset | yes (alpha) |
| __unset | yes (alpha) |
| __call | yes (alpha) |
| Object Iteration | foreach | no |
| Magic Methods | __sleep | yes (alpha) |
| __wakeup | no |
| __toString | yes (alpha) |
| __set_state | no |
| __clone | yes (alpha) |
| Final Keyword | final | yes (alpha) |
| Object cloning | clone | yes (alpha) |
| Comparing objects | {see comparison operators} | no |
| Reflection | Reflection for functions | no |
| Reflection for classes | no |
| Reflection for extensions | no |
| Type Hinting | Type hinting | yes (alpha) |
| 20. Exceptions | Exceptions | exception class | yes (alpha) |
| try catch | yes (alpha) |
| Extending exceptions | yes (alpha) |
| 21. References Explained | Support references | assigning, comparing, references | yes (alpha) |
| Passing by Reference | Passing by reference | yes (alpha) |
| Returning References | Returning references | yes (alpha) |
| Unsetting References | Unsetting references | yes (alpha) |
