[eridius]

  $ php -r '::'
  Parse error: parse error in Command line code on line 1

How'd you get the weird error?

Edit:

Hrm, if I try it on my DreamHost account, I get something more similar to yours:

  $ php -r '::'
  Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in Command line code on line 1