Is the double colon var resolution valid in an Argument?
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01-21-2008, 11:58 AM
Join Date: Apr 2007
The simple answer to your question is, no. Trying to use a constant of any kind (class or global) will result in a parse error, "
syntax error, unexpected T_CONST, expecting T_VARIABLE
". The error is pretty self-explanatory, the PHP engine expects a standard, normal, garden-variety variable (a reference or otherwise) as an argument.
If you were to try this with a static variable (
public static $test = ...
as the function argument) then you would also get a parse error, this time saying: "
syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting '&' or T_VARIABLE
". Again it's clear that PHP really, really only wants a regular variable in there (the
is just a constant for the '
If you tried to use an object property as the argument (
) then I think you can guess the likely outcome from the examples given so far.
In short, you can only use a normal variable (
) or reference (
) as arguments.
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