Php check stdclass property exists

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?

asked Dec 4, 2013 at 20:51

6

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.

answered Dec 4, 2013 at 21:11

Matteo TassinariMatteo Tassinari

17.6k7 gold badges60 silver badges80 bronze badges

property_exists is the method designed for this purpose.

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.

answered Dec 4, 2013 at 21:09

JC.JC.

6703 silver badges12 bronze badges

Try a simple hack and use count, since the property contains an array, and I guess, that count(array) == 0 is the same case as when the property is not set.

foreach($sales->saleItems->saleItem as $sale)
{
 $status     = $sale->reviewState;

 if(@count($sale->gpps->gpp) && count($sale->gpps->gpp) > 0) 
 {
    $subId      = $sale->gpps->gpp[0]->_;
 }else{
    $subId      = "0-0";
 }
}

Sure, this is not the most beautiful solution, but since the php-function do not work as expected, I thought a bit more pragmatic.

answered Dec 5, 2013 at 11:24

QullbruneQullbrune

1,9252 gold badges20 silver badges20 bronze badges

Another way , get_object_vars

$obj = new stdClass();
$obj->name = "Nick";
$obj->surname = "Doe";
$obj->age = 20;
$obj->adresse = null;

$ar_properties[]=get_object_vars($obj);

foreach($ar_properties as $ar){
    foreach ($ar as $k=>$v){        
    if($k =="surname"){
        echo "Found";
    }
    }
}

answered Dec 13, 2016 at 23:38

Fevly PallarFevly Pallar

3,0192 gold badges14 silver badges19 bronze badges

How to check if property exists in PHP?

How check stdClass object is empty in PHP?

How do you check if a key exists in an object PHP?

How do you access the properties of an object in PHP?