PHP Backporter
Currently supported
conststatements (converted intodefinefunction calls)__DIR__magic constant (converted intodirname(__FILE__))- Lambda functions (converted into normal functions)
- Closures (converted into classes)
- Namespaces (converted into underscore-separated pseudo namespaces)
Limitations
Closures
Closures are represented by a callable array, so calls of type $function() will be transformed
into call_user_func(_array) calls. This can be a problem is functions expect arguments by reference.
Namespaces
The current namespaces implementation is very limited. Most notably it assumes all unqualified uses
of constants and functions are global if a global constant with such a name is defined and local if
it is not. Additionally many dynamic constructs do not work yet.
ToDo
- Dynamic scope resolution (
$className::) - Short ternary operator
- Late static binding (?)
__callStaticmagic (?)__invokemagic (?)goto(?)- ...