#25816 [Com]: Class constants of type array hold directly inaccessible keys/values

[seva-php at zend dot com]

 ID:   25816
 Comment by:   seva-php at zend dot com
 Reported By:  dan at wep dot net
 Status:   Closed
 Bug Type: Zend Engine 2 problem
 Operating System: *
 PHP Version:  5CVS-2003-11-29
 New Comment:

Const arrays is very useful thing! For example when storing error codes
etc.



Why isn't it possible just to fix the behavior?


Previous Comments:


[2004-01-09 08:58:04] [EMAIL PROTECTED]

This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Arrays in class constants aren't allowed anymore.



[2003-12-01 20:37:23] a at b dot c dot de

This isn't restricted to associative arrays in which keys are
explicitly specified:



class f { const t = array(7,6,5); }

echo f::t[1];



[2003-10-10 12:24:39] [EMAIL PROTECTED]

This is an easier verification:

php -r 'class t{const c=array(1=Hello\n);} echo t::c[1];'



[2003-10-10 00:29:45] dan at wep dot net

The parse error thrown complains about the print(someData['foo']) line.
Sorry if this wasn't clear. Also expected output would probably be more
like bar ..var_dump output.. bar.



[2003-10-10 00:24:51] dan at wep dot net

Description:

Constants defined inside classes can be defined as an array
prepopulated with key, value pairs; however this data is not directly
accessible.



It is possible to create a local variable copy of the constant at
runtime and use it to access the data.



If class constants are not meant to be able to hold array data, then a
parse error should of been thrown on the 'const' declaration.

Reproduce code:
---
class test {

  const someData = array('foo' = 'bar');



  function __construct() {

$dataCopy = someData;

print($dataCopy['foo']);  // This works

print(var_dump(someData));  // This works (shows all array
information)

print(someData['foo']);  // This throws a parse error

  }



}



$obj = new test();

Expected result:

bar

bar

bar



.. Jackpot! :)

Actual result:
--
Parse error: parse error, unexpected '[' 





-- 
Edit this bug report at http://bugs.php.net/?id=25816edit=1

#25816 [Com]: Class constants of type array hold directly inaccessible keys/values

[a at b dot c dot de]

 ID:   25816
 Comment by:   a at b dot c dot de
 Reported By:  dan at wep dot net
 Status:   Verified
 Bug Type: Zend Engine 2 problem
 Operating System: *
 PHP Version:  5CVS-2003-11-29
 New Comment:

This isn't restricted to associative arrays in which keys are
explicitly specified:

class f { const t = array(7,6,5); }
echo f::t[1];


Previous Comments:


[2003-10-10 12:24:39] [EMAIL PROTECTED]

This is an easier verification:
php -r 'class t{const c=array(1=Hello\n);} echo t::c[1];'



[2003-10-10 00:29:45] dan at wep dot net

The parse error thrown complains about the print(someData['foo']) line.
Sorry if this wasn't clear. Also expected output would probably be more
like bar ..var_dump output.. bar.



[2003-10-10 00:24:51] dan at wep dot net

Description:

Constants defined inside classes can be defined as an array
prepopulated with key, value pairs; however this data is not directly
accessible.

It is possible to create a local variable copy of the constant at
runtime and use it to access the data.

If class constants are not meant to be able to hold array data, then a
parse error should of been thrown on the 'const' declaration.

Reproduce code:
---
class test {
  const someData = array('foo' = 'bar');

  function __construct() {
$dataCopy = someData;
print($dataCopy['foo']);  // This works
print(var_dump(someData));  // This works (shows all array
information)
print(someData['foo']);  // This throws a parse error
  }

}

$obj = new test();

Expected result:

bar
bar
bar

.. Jackpot! :)

Actual result:
--
Parse error: parse error, unexpected '[' 





-- 
Edit this bug report at http://bugs.php.net/?id=25816edit=1