Variable variables in classes

[MW]

I wanted to know if it was possible to use the "Variable variable"
syntax to access a public variable inside a class. For example, using
the code below, I am trying to set the value of variable $var_a in the
class Cls from outside the code, but want to be able to use the same
code to assign a value to $var_b. i.e. I don't want the variable's name
defined in the code.

class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

[MW]

I take it back - the original syntax as described in the code actually
does work. Sorry!

MW wrote:

I wanted to know if it was possible to use the "Variable variable"
syntax to access a public variable inside a class. For example, using
the code below, I am trying to set the value of variable $var_a in the
class Cls from outside the code, but want to be able to use the same
code to assign a value to $var_b. i.e. I don't want the variable's name
defined in the code.

class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

[Steve]

"MW" <bu**@spandan.c omwrote in message
news:13******** ****@corp.super news.com...

>I wanted to know if it was possible to use the "Variable variable"
syntax to access a public variable inside a class. For example, using
the code below, I am trying to set the value of variable $var_a in the
class Cls from outside the code, but want to be able to use the same
code to assign a value to $var_b. i.e. I don't want the variable's name
defined in the code.

class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

try:
$x->$$y = 'hello'
or:
$x->${$y} = 'hello'

then again, i loathe variable variables as they are a *KEY* indication that
basic architecture is severly flawed. i don't know why i just encouraged you
to use them.

[Rik Wasmus]

On Tue, 20 Nov 2007 17:08:14 +0100, Steve <no****@example .comwrote:

>
"MW" <bu**@spandan.c omwrote in message
news:13******** ****@corp.super news.com...

>I wanted to know if it was possible to use the "Variable variable"
syntax to access a public variable inside a class. For example, using
the code below, I am trying to set the value of variable $var_a in the
class Cls from outside the code, but want to be able to use the same
code to assign a value to $var_b. i.e. I don't want the variable's name
defined in the code.

class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

try:
$x->$$y = 'hello'
or:
$x->${$y} = 'hello'

Which would require you have a $var_a set outside the class:

$y="var_a";
$var_a = "foo";

This: $x->$$y = 'hello'
Is this: $x->$var_a = 'hello'
Is this: $x->foo = 'hello'

As the OP allready stated, his original code just plainly works.
--
Rik Wasmus

[Steve]

"Rik Wasmus" <lu************ @hotmail.comwro te in message
news:op******** *******@metalli um.lan...
On Tue, 20 Nov 2007 17:08:14 +0100, Steve <no****@example .comwrote:

>
"MW" <bu**@spandan.c omwrote in message
news:13******** ****@corp.super news.com...

>I wanted to know if it was possible to use the "Variable variable"
syntax to access a public variable inside a class. For example, using
the code below, I am trying to set the value of variable $var_a in the
class Cls from outside the code, but want to be able to use the same
code to assign a value to $var_b. i.e. I don't want the variable's name
defined in the code.

class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

try:
$x->$$y = 'hello'
or:
$x->${$y} = 'hello'

=============

Which would require you have a $var_a set outside the class:

$y="var_a";
$var_a = "foo";

which is the exact thing his example shows.

This: $x->$$y = 'hello'
Is this: $x->$var_a = 'hello'
Is this: $x->foo = 'hello'

As the OP allready stated, his original code just plainly works.

right...but please note, i responded before he remarked that his code *did*
work. so, to me, it makes no difference.

btw, rik...PLEASE set your newreader to PROPERLY mark-up/indent your
replies. it's a pain in the ass to respond to you since i have to manually
put in for everything you type...just so everyone can tell where my
response goes in all that mess.

thanks.

[Rik Wasmus]

On Tue, 20 Nov 2007 23:03:04 +0100, Steve <no****@example .comwrote:

"Rik Wasmus" <lu************ @hotmail.comwro te in message
news:op******** *******@metalli um.lan...
On Tue, 20 Nov 2007 17:08:14 +0100, Steve <no****@example .comwrote:

>"MW" <bu**@spandan.c omwrote in message

>>class Cls {
public $var_a;
public $var_b;
}

$x=new Cls;
$y="var_a";
$x->$y="Hello"; // want this to translate to $x->var_a="Hello "

I tried using $x->{$y}="Hello" but that did not work either...

try:
$x->$$y = 'hello'
or:
$x->${$y} = 'hello'

=============

>Which would require you have a $var_a set outside the class:

$y="var_a";
$var_a = "foo";

which is the exact thing his example shows.

No, it isn't

>This: $x->$$y = 'hello'
Is this: $x->$var_a = 'hello'
Is this: $x->foo = 'hello'

>As the OP allready stated, his original code just plainly works.

right...but please note, i responded before he remarked that his code
*did*
work. so, to me, it makes no difference.

Euhm, you mean you were just wildly guessing? The correct answer should
have been 'it does work'.

btw, rik...PLEASE set your newreader to PROPERLY mark-up/indent your
replies. it's a pain in the ass to respond to you since i have to
manually
put in for everything you type...just so everyone can tell where my
response goes in all that mess.

If your newsreader cannot cope with format=flowed (From the header:
'Content-Type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15')
it's either ancient or just plainly sucks. Please upgrade (OEQuotefix?
<http://www.snapfiles.c om/get/oequotefix.html >, a quick test here shows it
whips MSOE rightly into shape).

Please look at the source or my post, and notice that my message is
actually fullly compliant. Check the relevant RFC's.
--
Rik Wasmus

[Michael Fesser]

..oO(Steve)

>btw, rik...PLEASE set your newreader to PROPERLY mark-up/indent your
replies. it's a pain in the ass to respond to you since i have to manually
put in for everything you type...just so everyone can tell where my
response goes in all that mess.

As already said earlier - it's your own OE which causes the problem
(quoted-printable bug). What about changing to a real newsreader?

Micha