PHP 4.0 Bug #6741 Updated: gettype of 'user function' returns null
| From: | stas@php.net | Date: | Mon, 23 Oct 2000 08:58:19 +0000 |
| Subject: | PHP 4.0 Bug #6741 Updated: gettype of 'user function' returns null | ||
| Groups: | php.dev | ||
| Request: | Send a blank email to php-dev+get-35849@lists.php.net to get a copy of this message | ||
ID: 6741
Updated by: stas
Reported By: ping@alt.it
Status: Analyzed
Bug Type: Documentation problem
Assigned To:
Comments:
This is not a bug. I repeat: This. Is. Not. A. Bug. gettype is meant to get type of a variable.
Function is not a variable. Thus, you can not use gettype on a function.
If you need to check existance of a function with given name, use function_exists.
Previous Comments:
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[2000-10-23 04:53:34] ping@alt.it
This bug now can be circumvented by using the new
method_exixts() functionof PHP4.
It is only viable for class methods though.
I think that for backward compatibility, and to keep in line with the old and new documentation, it
shouldn't be too hard to have gettype() return 'user function' too.
Otherwise relegate it as a docu error and thanks for the help
Meanwile I posted a new version of the php4 implementation of 'remote scripting' that uses
'method_exixts()? instead on php-general list and am awaitimg a feedback from the original
author.
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[2000-10-22 12:27:57] ping@alt.it
This missing functionality actually breaks the PHP 'remote scripting' interface, as
discussed some time ago in the php mailing list
See messages about 'remote scripting' starting at
http://marc.theaimsgroup.com/?l=php-general&m=92113045423518&w=2
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[2000-10-19 12:05:02] ping@alt.it
It was not me who invented this function, although I've been using it since 3.12.
It is quite useful for marshallizing and serializing things, and it gives a bit of introspection to
PHP.
And as in PHP4 the developers have thought to increase the scope of gettype() to new types as
'properties', which are still a bit of a mystery, I thought the old ones would still work.
Nevertheless $myclass->b in the esample above is an integer variable, better said an 'object
property', and not a string (PHP3) nor NULL (PHP4).
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[2000-10-18 06:07:59] stas@php.net
What should be working? Function is not a variable, what type do you expect to get from there? Do
you want PHP also to return gettype($if) as "PHP language construct" and
gettype($Bill_Clinton) as "US president"? gettype returns types of variables, that's
it - it can not return type of whatever object that is not a variable.
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[2000-10-15 11:28:15] jmoore@php.net
I would not say this is a docu problem but a scripting engine problem, This behaviour should really
be working, I dont think the docu's should be changed just because it doesnt, instead it should
be fixed.
James
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Full Bug description available at: http://bugs.php.net/?id=6741