Cannot use object of type stdClass as array in
문제
i have sometimes following error Fatal error: Cannot use object of type stdClass as array in.. with this function:
function deliciousCount($domain_name)
{
$data = json_decode(
file_get_contents(
"http://feeds.delicious.com/v2/json/urlinfo/data?url=$domain_name"
)
);
if ($data) {
return $data[0]->total_posts;
} else {
return 0;
}
}
$delic = deliciousCount($domain_name);
but this error happen sometimes only for specific domains any help?
해결책
function deliciousCount($domain_name) {
$data = json_decode(
file_get_contents(
"http://feeds.delicious.com/v2/json/urlinfo/data?url=$domain_name"
)
);
// You should double check everything because this delicious function is broken
if (is_array($data) && isset($data[ 0 ]) &&
$data[ 0 ] instanceof stdClass && isset($data[ 0 ]->total_posts)) {
return $data[ 0 ]->total_posts;
} else {
return 0;
}
}
다른 팁
According to the manual, there is an optional second boolean
param which specifies whether the returned object should be converted to an associative array (default is false). If you want access it as an array then just pass true
as the second param.
$data = json_decode(
file_get_contents(
"http://feeds.delicious.com/v2/json/urlinfo/data?url=$domain_name"
),
true
);
Before using $data as array:
$data = (array) $data;
And then simply get your total_posts value from array.
$data[0]['total_posts']
json_decode
returns an instance of stdClass, which you can't access like you would access an array. json_decode
does have the possibility to return an array, by passing true
as a second parameter.
function deliciousCount($domain_name)
{
$data = json_decode(
file_get_contents(
"http://feeds.delicious.com/v2/json/urlinfo/data?url=$domain_name"
)
);
if ($data) {
return $data->total_posts;
} else {
return 0;
}
}
$delic = deliciousCount($domain_name);
or
function deliciousCount($domain_name)
{
$data = json_decode(
file_get_contents(
"http://feeds.delicious.com/v2/json/urlinfo/data?url=$domain_name",true
)
);
if ($data) {
return $data['total_posts'];
} else {
return 0;
}
}
$delic = deliciousCount($domain_name);
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