it's a limitation, and not allowed in PHP. There was a whole line of posts about it in internals.
- Tul
Jake Press wrote:
Hello All,
I am having an interesting syntax problem. :(
I have been battling this little bugger for the last week and a half, I have exhausted google and numerous php channels in that time.
I am starting to beleive it could be a syntax that is sofar un-documented or an unclear syntax limitation (read as: bug?).
PHP Version: ------------ PHP Version 5.1.0-dev - And has been tested on numerous other builds/versions
Problem: --------
I am trying to access a static member of a class dynamically. ie.
$foo = 'className'; echo $foo::$staticMember;
Example Code: -------------
<?php
// Define a class with a nice juicy static variable
class bob {
public static $type = 'safd';
}
// Lets chuck the name of the class into a variable...
$foo = 'bob';
// Just to show it all works lets do it manualllllly
echo bob::$type;
// This is the line with the well-wicked parse error on the double colon
echo $foo::$type;
?>
Note that the last line in this example code generated a syntax error:
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM, expecting ',' or ';' in /mnt/data0/www/twd/test.php on line 15
I'm aware that the current syntax is definately wrong, but for simplicity i think its a good example.
I think i have ruled out its an internal scoping issue within php by successfully using eval() to them same effect.
ie.
eval('echo '. $foo .'::$type;');
Thanks in advance for any Thoughts, Answers and Comments Regards
Jake Press
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