In Becki sei Wiki

Property	C++	Java	PHP
First command line argument			$_SERVER['argv'][1]
Default 'passing to function' behaviour	by value	primitives by value, objects by reference	by value, is this also true for objects in php5?
default function arguments	YES	since JDK1.5 ?	YES, in php4 not for references
String comparing			if ('willi' == $anotherString) ...
global variables & functions,	YES	only through static class members	YES
preprocessor	YES	NO	NO
structures	YES	NO	?
unions	YES	NO	?
bitfields	YES	NO	?
typedef	YES	NO	NO?
mulitple inheritance	YES	with interfaces & delegation	?
operator overloading	YES	NO (Exception: + in String)	NO?
pointers	YES	NO	NO
forced exception handling	NO	YES	?
Threads	with additional librarys	NO	?
Index checking in arrays	NO	YES	YES?
Arrays can grow	NO, use container	NO, use container	YES
garbage collection	manual	automatic	automatic