Illegal offset type for array. Object to integer convertion

[Manish]

The code is as ...
$folderlistfile = $path."xmlfile. xml";

/*

<list>
<details id="2">
<name>Books</name>
<mainid>0</mainid>
</details>
<details id="1003">
<name>CDs</name>
<mainid>0</mainid>
</details>
</list>

*/

$list = simplexml_load_ file($folderlis tfile);

foreach($list as $sno=>$details) {
if($details->isdeletable) {
if($details->mainid) {

echo "<br /mainid = ".$details->mainid." : id =
".$details['id']." ";
var_dump($detai ls->mainid);
$mainid = $details->mainid;
settype($mainid , "integer");
var_dump($maini d);

// I want to save the details in an array
//$listarr[$mainid][] = $details['id']; //Warning: Illegal offset
type
//$listarr[$details->mainid][] = $details['id']; //Warning: Illegal
offset type
}
}
}
echo, var_dump will output as follow ...

mainid = 0 : id = 2
object(SimpleXM LElement)#5 (1) { [0]= string(1) "0" }
UNKNOWN:0
mainid = 0 : id = 1003
object(SimpleXM LElement)#4 (1) { [0]= string(1) "0" }
UNKNOWN:0
Both of this generate the error : Warning: Illegal offset type

$listarr[$mainid][] = $details['id']; //Warning: Illegal offset type
$listarr[$details->mainid][] = $details['id']; //Warning: Illegal
offset type

and page doesn't execute furthur of this line.
I suppose it is because the array key is an object. How do I convert it
to integer.

print_r($detail s->mainid) displays SimpleXMLElemen t Object ( [0] =0
)
print_r($mainid ) : nothing is displyed. even mainid = 0 : id = 2 is
not displayed.
System: free bsd, php 5

As is mentioned in the code, I want to craete an array as

either
$listarr[$mainid][] = $details['id']; //Warning: Illegal
offset type
or
$listarr[$details->mainid][] = $details['id']; //Warning:
Illegal offset type
Thanks.

Manish

[Manish]

Got solved the problem by casting the variable.

(string) $variable;

Manish wrote:

The code is as ...
$folderlistfile = $path."xmlfile. xml";

/*

<list>
<details id="2">
<name>Books</name>
<mainid>0</mainid>
</details>
<details id="1003">
<name>CDs</name>
<mainid>0</mainid>
</details>
</list>

*/

$list = simplexml_load_ file($folderlis tfile);

foreach($list as $sno=>$details) {
if($details->isdeletable) {
if($details->mainid) {

echo "<br /mainid = ".$details->mainid." : id =
".$details['id']." ";
var_dump($detai ls->mainid);
$mainid = $details->mainid;
settype($mainid , "integer");
var_dump($maini d);

// I want to save the details in an array
//$listarr[$mainid][] = $details['id']; //Warning: Illegal offset
type
//$listarr[$details->mainid][] = $details['id']; //Warning: Illegal
offset type
}
}
}
echo, var_dump will output as follow ...

mainid = 0 : id = 2
object(SimpleXM LElement)#5 (1) { [0]= string(1) "0" }
UNKNOWN:0
mainid = 0 : id = 1003
object(SimpleXM LElement)#4 (1) { [0]= string(1) "0" }
UNKNOWN:0
Both of this generate the error : Warning: Illegal offset type

$listarr[$mainid][] = $details['id']; //Warning: Illegal offset type
$listarr[$details->mainid][] = $details['id']; //Warning: Illegal
offset type

and page doesn't execute furthur of this line.
I suppose it is because the array key is an object. How do I convert it
to integer.

print_r($detail s->mainid) displays SimpleXMLElemen t Object ( [0] =0
)
print_r($mainid ) : nothing is displyed. even mainid = 0 : id = 2 is
not displayed.
System: free bsd, php 5

As is mentioned in the code, I want to craete an array as

either
$listarr[$mainid][] = $details['id']; //Warning: Illegal
offset type
or
$listarr[$details->mainid][] = $details['id']; //Warning:
Illegal offset type
Thanks.

Manish