PHP Trying to get property of non-object for valid object - php

Question

I have the following problem:
I'm iterating through an array of valid objects using foreach. When trying to access the resulting objects or their properties I am getting the notice I would be trying to access a non-object.
Here is the code:
$schema = json_decode($_POST['d']);
foreach ($schema->node as $node) {
var_dump($node);
if ($node->status == 1) {
$data = $node->id;
}
}
var_dump outputs the following:
object(stdClass)#5 (6) {
["status"]=>
int(0)
["id"]=>
int(1)
["title"]=>
string(6) "Sensor"
["script"]=>
string(24) "from eZness import swag;"
["x"]=>
int(60)
["y"]=>
int(80)
}
Thanks in advance.
UPDATE:
$schema = json_decode($_POST['d']);
foreach ($schema->node as $node) {
var_dump($node);
echo $node->status; //Funnily this works
$status = $node->status; //while this doesn't
if ($node->status == 1) { //and this doesn't as well
$data = $node->id;
}
}
But when removing the var_dump even the echo doesn't work anymore.
UPDATE:
Resolved. Had a look at the client part of the application, there was a problem with pushing NULL values in the $schema->node array which of course are non-objects.

Answer 1

You are trying to access $node->data, which does not exist.

Answer 2

Perhaps more of a workaround than an answer but: use
$schema = json_decode($_POST['d'],true);
When you pass true as the second parameter, you get back an associative array instead of an object.
You should be able to loop through it with this:
$schema = json_decode($_POST['d'],true);
foreach ($schema['node'] as $node) {
if ($node['status'] == 1) {
$data = $node['id'];
}
}