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Waarom is mijn array multidimesionaal?

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Aarclay

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Ik heb deze code:

[COLOR= #0000BB]<?php
$arr[/COLOR] [COLOR= #007700]=[/COLOR] json_decode[COLOR= #007700]([/COLOR][COLOR= #0000BB]$content[/COLOR][COLOR= #007700],[/COLOR]true[COLOR= #007700]);[/COLOR]
        [COLOR= #FF8000]//$newfeed = array();[/COLOR]
    [URL="http://www.php.net/foreach"]foreach[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$arr[/COLOR] [COLOR= #007700]as[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700]) {[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]DateGPS[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateGps[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]DateReceived[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateReceived[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]Longitude[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Longitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]Latitude[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Latitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]Speed[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Speed[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]DOP[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Dop[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]VehicleNumber[/COLOR][COLOR= #007700]] =[/COLOR] strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]);[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]VehicleType[/COLOR][COLOR= #007700]] =[/COLOR] getVehicleTypesByVehicleNumber[COLOR= #007700]([/COLOR]strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]));[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]TrainNumber[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][[/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]][[/COLOR][COLOR= #DD0000]Status[/COLOR][COLOR= #007700]] =[/COLOR] getTrainStatus[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]]);
    }[/COLOR]
    [COLOR= #0000BB]$feed[/COLOR] [COLOR= #007700]=[/COLOR] json_encode[COLOR= #007700]([/COLOR][COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700]);[/COLOR]
    [URL="http://www.php.net/return"]return[/URL] [COLOR= #0000BB]$feed[/COLOR][COLOR= #007700];[/COLOR]
?>


Ik open dus een (gare yummie) API in in $data. En ik wil dus from scratch een nieuwe array maken met wat meer gegevens en betere naamgeving. Maar dan krijg ik steeds een multidimensionale array waarin er een key is met het materieelnummer en de data. Terwijl ik dat niet wil:

{"2428":{"DateGPS":"2017-10-23T09:20:00+02:00","DateReceived":"2017-10-23T09:20:00.864+02:00","Longitude":5.17141,"Latitude":52.16514,"Speed":115,"DOP":0,"VehicleNumber":"2459","TrainNumber":"5726"},"2410":{"DateGPS":"2017-10-23T09:20:04+02:00","DateReceived":"2017-10-23T09:20:04.023+02:00","Longitude":5.17141,"Latitude":52.16514,"Speed":115,"DOP":0,"VehicleNumber":"2410","TrainNumber":"5726"}}


Terwijl het dit moet zijn:

[{"DateGPS":"2017-10-23T09:20:00+02:00","DateReceived":"2017-10-23T09:20:00.864+02:00","Longitude":5.17141,"Latitude":52.16514,"Speed":115,"DOP":0,"VehicleNumber":"2459","TrainNumber":"5726"},{"DateGPS":"2017-10-23T09:20:04+02:00","DateReceived":"2017-10-23T09:20:04.023+02:00","Longitude":5.17141,"Latitude":52.16514,"Speed":115,"DOP":0,"VehicleNumber":"2410","TrainNumber":"5726"}]


Hoe doe ik dat dan in PHP?
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Milan

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[COLOR= #0000BB]<?php
$arr[/COLOR] [COLOR= #007700]=[/COLOR] json_decode[COLOR= #007700]([/COLOR][COLOR= #0000BB]$content[/COLOR][COLOR= #007700],[/COLOR]true[COLOR= #007700]);[/COLOR]
        [COLOR= #FF8000]//$newfeed = array();[/COLOR]
    [URL="http://www.php.net/foreach"]foreach[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$arr[/COLOR] [COLOR= #007700]as[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700]) {[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]DateGPS[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateGps[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]DateReceived[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateReceived[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]Longitude[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Longitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]Latitude[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Latitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]Speed[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Speed[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]DOP[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Dop[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]VehicleNumber[/COLOR][COLOR= #007700]] =[/COLOR] strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]);[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]VehicleType[/COLOR][COLOR= #007700]] =[/COLOR] getVehicleTypesByVehicleNumber[COLOR= #007700]([/COLOR]strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]));[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]TrainNumber[/COLOR][COLOR= #007700]] =[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][][[/COLOR][COLOR= #DD0000]Status[/COLOR][COLOR= #007700]] =[/COLOR] getTrainStatus[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]]);
    }[/COLOR]
    [COLOR= #0000BB]$feed[/COLOR] [COLOR= #007700]=[/COLOR] json_encode[COLOR= #007700]([/COLOR][COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700]);[/COLOR]
    [URL="http://www.php.net/return"]return[/URL] [COLOR= #0000BB]$feed[/COLOR][COLOR= #007700];[/COLOR]
?>


Zo?
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Aarclay

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Maar dan krijg ik toch losse items? Al die informatie hoort bij een treinstel.
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Milan

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Dan moet je het in de foreach in een losse array stoppen, en die losse array stop je vervolgens als item in $newfeed.
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Rik

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Zoals Milan al zegt inderdaad gewoon in een nieuwe losse array stoppen:

[COLOR= #0000BB]<?php
$arr[/COLOR] [COLOR= #007700]=[/COLOR] json_decode[COLOR= #007700]([/COLOR][COLOR= #0000BB]$content[/COLOR][COLOR= #007700],[/COLOR]true[COLOR= #007700]);[/COLOR]

[URL="http://www.php.net/foreach"]foreach[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$arr[/COLOR] [COLOR= #007700]as[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700]) {[/COLOR]
    [COLOR= #0000BB]$train[/COLOR] [COLOR= #007700]= [[/COLOR]
        [COLOR= #DD0000]DateGPS[/COLOR]       [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateGps[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]DateReceived[/COLOR]  [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]DateReceived[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]Longitude[/COLOR]     [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Longitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]Latitude[/COLOR]      [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Latitude[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]Speed[/COLOR]         [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Speed[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]DOP[/COLOR]           [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Dop[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]VehicleNumber[/COLOR] [COLOR= #007700]=>[/COLOR] strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]);[/COLOR]
        [COLOR= #DD0000]VehicleType[/COLOR]   [COLOR= #007700]=>[/COLOR] getVehicleTypesByVehicleNumber[COLOR= #007700]([/COLOR]strip_additionals[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]]));[/COLOR]
        [COLOR= #DD0000]TrainNumber[/COLOR]   [COLOR= #007700]=>[/COLOR] [COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]];[/COLOR]
        [COLOR= #DD0000]Status[/COLOR]        [COLOR= #007700]=>[/COLOR] getTrainStatus[COLOR= #007700]([/COLOR][COLOR= #0000BB]$data[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Number[/COLOR][COLOR= #007700]])
    ];[/COLOR]

    [COLOR= #0000BB]$newfeed[/COLOR][COLOR= #007700][] =[/COLOR] [COLOR= #0000BB]$train[/COLOR][COLOR= #007700];
}[/COLOR]
?>
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Aarclay

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Ja, dat werkt al... maar half?

Als ik een enkele trein opvraag, krijg ik dit:

{"614":{"DateGPS":"2017-10-23T14:31:39+02:00","DateReceived":"2017-10-23T14:31:40.183+02:00","Longitude":5.72777,"Latitude":52.01757,"Speed":125,"DOP":0,"DOP_status":"n/a","VehicleNumber":"2203","VehicleType":"NS FLIRT-3 drie-delig","TrainNumber":"7548","Status":"In dienst"}}


En dus wéér die onnodige, in de weg liggende key.

Maar als ik meerdere waardes heb:

{"DateGPS":"2017-10-23T14:30:05+02:00","DateReceived":"2017-10-23T14:30:06.276+02:00","Longitude":5.18176,"Latitude":52.22627,"Speed":10,"DOP":0,"DOP_status":"n/a","VehicleNumber":"2459","VehicleType":"NS SLT vier-delig","TrainNumber":"5749","Status":"In dienst"},{"DateGPS":"2017-10-23T14:29:50+02:00","DateReceived":"2017-10-23T14:29:52.026+02:00","Longitude":4.63915,"Latitude":52.38822,"Speed":0,"DOP":0,"DOP_status":"n/a","VehicleNumber":"2978","VehicleType":"NS SGMm drie-delig","TrainNumber":"4853","Status":"In dienst"}]


Joepie, geen key! Netjes!

Is PHP nou eigenwijs, of moet ik anders maar zelf gewoon die hele JSON-string maar zelf gaan opzetten? Dát zou wel het meest ultieme ranzigste zijn..... :/
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Milan

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Dr zal ergens nog in jouw code een stukje staan waar je de key definieert. PHP kan niet vanuit het niets een key tevoorschijn toveren.
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Aarclay

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Dan ben ik benieuwd waar? Want het is een stuk algemene code die centraal wordt gebruikt?

Enige wat ik me kan indenken, is dat dit daarvoor zorgt?

[COLOR= #0000BB]<?php
$resulted_array[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/array_filter"]array_filter[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$json_to_array[/COLOR][COLOR= #007700],function([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700]){[/COLOR] [URL="http://www.php.net/return"]return[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]VehicleNumber[/COLOR][COLOR= #007700]] ==[/COLOR] [COLOR= #0000BB]$_GET[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]VehicleNumber[/COLOR][COLOR= #007700]]);});[/COLOR]    
?>
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Kingunit

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Die keys komen van de API. Als jij 1 resultaat terug krijgt hoef je niks te loopen en is een json_decode al genoeg toch?
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Aarclay

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@Kingunit Maar ik weet het nu zeker, die extra key komt dus uit dit stukje code:

[COLOR= #0000BB]<?php
$resulted_array[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/array_filter"]array_filter[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$array[/COLOR][COLOR= #007700],function([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700]){[/COLOR] [URL="http://www.php.net/return"]return[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]] ==[/COLOR] [COLOR= #DD0000]2469[/COLOR][COLOR= #007700]);});[/COLOR]
?>


Uitvoer: https://3v4l.org/JUYvQ

Punt is dat ik dus met deze code in de hele API-result wil filteren op een property (Trackee, welke ik VehicleNumber noem). Is er iets om dit te omzeilen?
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Milan

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Aarclay schreef:
@Kingunit Maar ik weet het nu zeker, die extra key komt dus uit dit stukje code:

[COLOR= #0000BB]<?php
$resulted_array[/COLOR] [COLOR= #007700]=[/COLOR] [URL="http://www.php.net/array_filter"]array_filter[/URL][COLOR= #007700]([/COLOR][COLOR= #0000BB]$array[/COLOR][COLOR= #007700],function([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700]){[/COLOR] [URL="http://www.php.net/return"]return[/URL] [COLOR= #007700]([/COLOR][COLOR= #0000BB]$v[/COLOR][COLOR= #007700][[/COLOR][COLOR= #DD0000]Trackee[/COLOR][COLOR= #007700]] ==[/COLOR] [COLOR= #DD0000]2469[/COLOR][COLOR= #007700]);});[/COLOR]
?>
Uitvoer: https://3v4l.org/JUYvQ

Punt is dat ik dus met deze code in de hele API-result wil filteren op een property (Trackee, welke ik VehicleNumber noem). Is er iets om dit te omzeilen?

Het object dat je zoekt heeft index 11 in de JSON, vandaar dus die 11.

Dit werkt

$array = json_decode($json,true);
$resulted_array = array_values(array_filter($array,function($v){ return ($v[Trackee] == 2469);},ARRAY_FILTER_USE_BOTH));

if (count($resulted_array) == 1) // Als hij niet 1 is is het item niet gevonden...
    $resulted_array = $resulted_array[0];

print_r($resulted_array);
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Aarclay

Lid · Topicstarter

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ARRAY_FILTER_USE_BOTH, is die nodig? Zit nog op PHP 5.5...
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Milan

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Aarclay schreef:
ARRAY_FILTER_USE_BOTH, is die nodig? Zit nog op PHP 5.5...
Oh, die stond in je voorbeeld code in de link, dus heb m overgenomen.
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Aarclay

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Ah... yummie
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Aarclay

Lid · Topicstarter

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Dat was inderdaad de truuk! Het werkt nu helemaal smile
En ja, arrays en callback is in mijn ogen best een pittige materie! Thanks voor ieders hulp smile
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