[Dolibarr-dev] Backward compatibility old php version

[Gustavo Novaro]

Hi everybody,
When coding in dolibarr i see in all files are coding with old php
rules, i promote php 5 and php 4 don't have official support, don't
promote old practice like register globals, old php object model.

all classes are codded like this

class Skeleton_class
{
     var $db;                            //!< To store db handler
     var $error;                            //!< To return error code
(or message)
     var $errors=array();                //!< To return several error
codes (or messages)
     //var $element='skeleton';            //!< Id that identify managed
objects
     //var $table_element='skeleton';    //!< Name of table without
prefix where object is stored

     var $id;
     var $prop1;
     var $prop2;
...
         function initAsSpecimen()
         {

         }
}
?>

please replace all var in properties for public, private and protected
and all methods we have accesors
public function...

All classes or pure php files should not have the closing tag for php
"?>", since the compiler will not interpret it and if they have any
newline at the end of the interrupt after the execution of scripts, it
is good practice to use this promoting the project mediawiki.