php stdClass check for property exist
php
Solution
Change
if(property_exists($sale, gpps))
with
if(property_exists($sale, "gpps"))
notice how now `gpps` is passed as string, as per the signature of the `property_exists` function:
`bool property_exists ( mixed $class , string $property )`
This function checks if the given property exists in the specified class.
Note: As opposed with `isset()`, `property_exists()` returns `TRUE` even if the property has the value `NULL`.
Problem
I have read some similar issues here but unfortunately find the solution for my case. Some part of the output for an API connection is as; ``` stdClass Object ( [page] => 0 [items] => 5 [total] => 5 [saleItems] => stdClass Object ( [saleItem] => Array ( [0] => stdClass Object ( [reviewState] => approved [trackingDate] => 2013-11-04T09:51:13.420+01:00 [modifiedDate] => 2013-12-03T15:06:39.240+01:00 [clickDate] => 2013-11-04T09:06:19.403+01:00 [adspace] => stdClass Object ( [_] => xxxxx [id] => 1849681 ) [admedium] => stdClass Object ( [_] => Version 3 [id] => 721152 ) [program] => stdClass Object ( [_] => yyyy [id] => 10853 ) [clickId] => 1832355435760747520 [clickInId] => 0 [amount] => 48.31 [commission] => 7.25 [currency] => USD [gpps] => stdClass Object ( [gpp] => Array ( [0] => stdClass Object ( [_] => 7-75 [id] => z0 ) ) ) [trackingCategory] => stdClass Object ( [_] => rers [id] => 68722 ) [id] => 86erereress-a9e4-4226-8417-a46b4c9fd5df ) ) ) ) ``` Some strings do not include gpps property. What I have done is as follows ``` foreach($sales->saleItems->saleItem as $sale) { $status = $sale->reviewState; if(property_exists($sale, gpps)) { $subId = $sale->gpps->gpp[0]->_; }else{ $subId = "0-0"; } } ``` What I want is I the gpps property is not included in that string $subId stored as 0-0 in db, otherwise get the data from the string. But it doesn't get the strings without gpps. Where is my mistake?