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

Jul 17 '05 #1

red

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

Jul 17 '05 #2

Michael Fesser

.oO(red)

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] ?
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.
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]'"
Same as above.
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 ?

Yep:

Complex (curly) syntax
<http://www.php.net/manual/en/language.types.string.php#language.types.string.pa rsing.complex>

Micha

Jul 17 '05 #3

Steve High

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

$this->test2 = array();
red <gr****@reenie.org> wrote in message news:<Ls******************@news.easynews.com>...

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

Jul 17 '05 #4