Notice: Trying to get property of non-object error

问题

i am trying to get data from:

http://api.convoytrucking.net/api.php?api_key=public&show=player&player_name=Mick_Gibson

but if i want to get player_name variable with this code:

<?  
$js = file_get_contents(\'http://api.convoytrucking.net/api.php?api_key=public&show=player&player_name=Mick_Gibson\');
  $pjs = json_decode($js);
  var_dump($pjs->{\'player_name\'});
?>

i get error:

Notice: Trying to get property of non-object in **\\htdocs\\index.php on line 9 + var_dump() returns: NULL

var_dump($pjs) returns:

array(1) { [0]=> object(stdClass)#52 (15) { [\"player_name\"]=> string(11) \"Mick_Gibson\" [\"player_id\"]=> int(88) [\"rank\"]=> string(12) \"FIRE TURTLEE\" [\"lastseen\"]=> int(1393797692) [\"registration_date\"]=> string(19) \"2012-08-10 17:01:34\" [\"last_mission_date\"]=> string(19) \"2014-03-02 21:41:50\" [\"time_offset\"]=> int(1) [\"house_id\"]=> int(611) [\"fines\"]=> int(0) [\"wanted\"]=> int(0) [\"police_badge\"]=> bool(true) [\"vip\"]=> bool(false) [\"staff\"]=> NULL [\"stats\"]=> object(stdClass)#53 (23) { [\"score\"]=> int(2941) [\"convoy_score\"]=> int(818) [\"ARTIC\"]=> int(515) [\"DUMPER\"]=> int(565) [\"TANKER\"]=> int(56) [\"CEMENT\"]=> int(163) [\"TRASH\"]=> int(7) [\"ARMORED\"]=> int(9) [\"VAN\"]=> int(501) [\"TOW\"]=> int(502) [\"COACH\"]=> int(4) [\"LIMO\"]=> int(97) [\"ARRESTS\"]=> int(272) [\"GTA\"]=> int(67) [\"BURGLAR\"]=> int(122) [\"HEIST\"]=> int(1) [\"PLANE\"]=> int(48) [\"HELI\"]=> int(12) [\"FAILED\"]=> int(312) [\"OVERLOADS\"]=> int(160) [\"TRUCK_LOADS\"]=> int(1275) [\"ODOMETER\"]=> int(28320798) [\"TIME\"]=> int(2078450) } [\"achievements\"]=> array(4) { [0]=> string(20) \"Professional Trucker\" [1]=> string(13) \"Gravel Hauler\" [2]=> string(12) \"Delivery Boy\" [3]=> string(7) \"Wrecker\" } } }

回答1:

This is because $pjs is an one-element-array of objects, so first you should access the array element, which is an object and then access its attributes.

echo $pjs[0]->player_name;

Actually dump result that you pasted tells it very clearly.

回答2:

The response is an array.

var_dump($pjs[0]->{'player_name'});

回答3:

@Balamanigandan your Original Post :- PHP Notice: Trying to get property of non-object error

Your are trying to access the Null Object. From AngularJS your are not passing any Objects instead you are passing the $_GET element. Try by using $_GET['uid'] instead of $objData->token

来源：https://stackoverflow.com/questions/22636826/notice-trying-to-get-property-of-non-object-error

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