ID: 37723
User updated by: matt at c dot anvas dot es
Reported By: matt at c dot anvas dot es
-Status: Bogus
+Status: Open
Bug Type: Class/Object related
Operating System: Any
PHP Version: 5.1.4
New Comment:
I did search, and I see something beyond 'late static
binding' here. The child class (or the parser) is leaving
its context in search of the method to inheret, but it
doesn't bring it into its context. In fact, it takes the
user into the parent's context. It changes its context.
This goes beyond simply saying that you're trying to figure
out how to do 'late static binding', and more into the realm
of 'hey, this is a bug, because the child class should
inheret its parents innards, and _stay within its context_.'
Am I mistaken in this thought? Is is perfectly OK and not a
bug that the context itself is changed?
I submitted this bug because I don't think the previous bug
submissions adequately described the issue at hand. Please
read the description.
M.T.
Previous Comments:
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[2006-06-07 08:05:47] [EMAIL PROTECTED]
Try to search bug DB before reporting new issues.
See bug #37654 and bug #37684.
------------------------------------------------------------------------
[2006-06-07 08:04:39] matt at c dot anvas dot es
(Fixed name)
------------------------------------------------------------------------
[2006-06-07 07:34:51] matt at c dot anvas dot es
Description:
------------
Though I've verified that others have noted the same problem
with code similar to mine, I noticed what appeared to be a
greater problem than at first realized.
In the code below, a call to get_class() from a static
method inhereted from the parent class actually shows no
evidence of inheretence. One look at the stacktrace and
you'll not even see one mention of the child class.
Late static binding may fix this, as I'm not precisely sure
what that does and what the exact problem is, but the way I
see it, the child class is not inhereting everything from
its parent but has, instead, thrown the call to its parent,
thereby changing its context.
Again, consider the code: my context is that I'm talking
with a child object, whose parent has a static method that
gets its name. Unfortunately, when asking the child its
name, the parent's name is instead given. If indeed the
child has inhereted its parents properties and methods, then
this is a bug whereby it changes the context outside of
itself.
Compare this to human inheretence and the children inheret
all of the properties from their parents (though a bit
organically with crossing over and the like). But still, it
contains those things and does not go to the parent every
time a property or an action needs to be consulted or acted.
Again, a look at the backtrace reveals that it totally skips
the child class, as if it doesn't even exist.
Reproduce code:
---------------
class Parent {
public static function name() {
// debug_print_backtrace(); // observe this
return get_class();
}
}
class Child extends Parent {}
print Child::name();
Expected result:
----------------
Child
Actual result:
--------------
Parent
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Edit this bug report at http://bugs.php.net/?id=37723&edit=1
