interpolation doesn't work for a variable in an array in an object

[red]

within an object function, this code:

$test2[]='test';
echo "$test[0]";

$this->test2[]='test2';
echo "$this->test2[0]\n";

produces this result:
test2
Array[0]

Why do I get Array[0] instead of the value in Array[0] ?
This only seems to happen when the variable is part of an array in an
object. If, for example, I want to wrap an object's variable in single
quotes this doesn't work:

"'$this->test2[0]'"

I can put double quotes areound the single quotes:

"'".$this->test2[0]."'"

but in a long string this becomes very tedious:

"$this->name=['".$this->mbox[0]."','".$this->mbox[1]."',".$this->mbox[2]."];";

is there any way to get "'$this->test2[0]'" to work ?

red

[red]

Re: interpolation doesn't work for a variable in an array in an object

The example I gave made no sense so I'll try again.

within an object function, this code:

$test[]='test';
echo "$test[0]";

$this->test2[]='test2';
echo "$this->test2[0]\n";

produces this result:
test
Array[0]

Why do I get Array[0] instead of the value in Array[0] ?
This only seems to happen when the variable is part of an array in an
object. If, for example, I want to wrap an object's variable in single
quotes this doesn't work:

"'$this->test2[0]'"

I can put double quotes areound the single quotes:

"'".$this->test2[0]."'"

but in a long string this becomes very tedious:

"$this->name=['".$this->mbox[0]."','".$this->mbox[1]."',".$this->mbox[2]."];";

is there any way to get "'$this->test2[0]'" to work ?

red

[Michael Fesser]

Re: interpolation doesn't work for a variable in an array in an object

.oO(red)
[color=blue]
>within an object function, this code:
>
>$test[]='test';
>echo "$test[0]";
>
>$this->test2[]='test2';
>echo "$this->test2[0]\n";
>
>produces this result:
>test
>Array[0]
>
>Why do I get Array[0] instead of the value in Array[0] ?[/color]

The variable is part of the string, but for the PHP parser it ends after
'$this->test2', which produces the output 'Array'. It works with simple
variables like $test[0], but with more complex structures (like object
properties for example) the parser is not always able to detect which
chars still belong to the variable name and which don't.
[color=blue]
>This only seems to happen when the variable is part of an array in an
>object. If, for example, I want to wrap an object's variable in single
>quotes this doesn't work:
>
>"'$this->test2[0]'"[/color]

Same as above.
[color=blue]
>I can put double quotes areound the single quotes:
>
> "'".$this->test2[0]."'"
>
>but in a long string this becomes very tedious:
>
>"$this->name=['".$this->mbox[0]."','".$this->mbox[1]."',".$this->mbox[2]."];";
>
>is there any way to get "'$this->test2[0]'" to work ?[/color]

Yep:

Complex (curly) syntax
<http://www.php.net/manual/en/language.types. string.php#lang uage.types.stri ng.parsing.comp lex>

Micha

[Steve High]

Re: interpolation doesn't work for a variable in an array in an object

Are you instantiating $this->test2 in the constructor?
i.e.

$this->test2 = array();


red <groups@reenie. org> wrote in message news:<LsPWc.339 69$RY5.3660@new s.easynews.com> ...[color=blue]
> The example I gave made no sense so I'll try again.
>
> within an object function, this code:
>
> $test[]='test';
> echo "$test[0]";
>
> $this->test2[]='test2';
> echo "$this->test2[0]\n";
>
> produces this result:
> test
> Array[0]
>
> Why do I get Array[0] instead of the value in Array[0] ?
> This only seems to happen when the variable is part of an array in an
> object. If, for example, I want to wrap an object's variable in single
> quotes this doesn't work:
>
> "'$this->test2[0]'"
>
> I can put double quotes areound the single quotes:
>
> "'".$this->test2[0]."'"
>
> but in a long string this becomes very tedious:
>
> "$this->name=['".$this->mbox[0]."','".$this->mbox[1]."',".$this->mbox[2]."];";
>
> is there any way to get "'$this->test2[0]'" to work ?
>
> red[/color]