#40300 [NEW]: Calling a function on a newly created object doesn't work

[finalvoid at gmail dot com]

From: finalvoid at gmail dot com
Operating system: Windows XP
PHP version: 5.2.0
PHP Bug Type: Class/Object related
Bug description: Calling a function on a newly created object doesn't work

Description:
------------
Calling a function on a newly created object requires saving the object to
a variable. Script that clarifies what I'm trying to say:

class C
{ public function __construct() {}
public function f() { return 1234; }
};
$y = (new C())->f();
print($y);

The above doesn't work. However, it does work if you replace the
penultimate line with
$x = new C();
$y = $x->f();

If we add parentheses around the $x, i.e.
$y = ($x)->f();
then it still doesn't work. This and bug report #9587 indicate that the
actual underlying cause is that object-valued variables are implemented,
but object-valued expressions are not.

Although the "this is not a bug" comment on the above-cited bug report
#9587 did not include a rationale, it's difficult for me to decide whether
it applies here as well; maybe this bug report should actually be a feature
request? Personally, as a PHP rookie but Java veteran, I would say that
object-valued expressions SHOULD work, and they DON'T, therefore it's a
BUG.

Thanks!

Reproduce code:
---------------
class C
{ public function __construct() {}
public function f() { return 1234; }
};
$y = (new C())->f();
print($y);

Expected result:
----------------
1234

Actual result:
--------------
Parse error: parse error, unexpected T_OBJECT_OPERATOR in c:\path\test.php
on line 5


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[derick@php.net]

ID: 40300
Updated by: [email]derick@php.net[/email]
Reported By: finalvoid at gmail dot com
-Status: Open
+Status: Bogus
Bug Type: Class/Object related
Operating System: Windows XP
PHP Version: 5.2.0
New Comment:

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
[url]http://www.php.net/manual/[/url] and the instructions on how to report
a bug at [url]http://bugs.php.net/how-to-report.php[/url]

This syntax is simply not supported.


Previous Comments:
------------------------------------------------------------------------

[2007-02-01 00:28:12] finalvoid at gmail dot com

Description:
------------
Calling a function on a newly created object requires saving the object
to a variable. Script that clarifies what I'm trying to say:

class C
{ public function __construct() {}
public function f() { return 1234; }
};
$y = (new C())->f();
print($y);

The above doesn't work. However, it does work if you replace the
penultimate line with
$x = new C();
$y = $x->f();

If we add parentheses around the $x, i.e.
$y = ($x)->f();
then it still doesn't work. This and bug report #9587 indicate that
the actual underlying cause is that object-valued variables are
implemented, but object-valued expressions are not.

Although the "this is not a bug" comment on the above-cited bug report
#9587 did not include a rationale, it's difficult for me to decide
whether it applies here as well; maybe this bug report should actually
be a feature request? Personally, as a PHP rookie but Java veteran, I
would say that object-valued expressions SHOULD work, and they DON'T,
therefore it's a BUG.

Thanks!

Reproduce code:
---------------
class C
{ public function __construct() {}
public function f() { return 1234; }
};
$y = (new C())->f();
print($y);

Expected result:
----------------
1234

Actual result:
--------------
Parse error: parse error, unexpected T_OBJECT_OPERATOR in
c:\path\test.php on line 5



------------------------------------------------------------------------


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