Get JSON value from array in PHP

Question

I have the following JSON

      [
           {
          "part_number": {
             "id": "1",
             "text": "962-00031-17A004"
          },
          "categoria": null,
          "codigo_cti": "",
          "fabricante": null,
          "modelo": null,
          "numero_serie": "",
          "obs": ""
       }
    ]

And I use the code bellow to collect data from it. If I select to extract obs, it works fine. I would like to know how can I collect the text and ID from part_number.

$produtos = json_decode($_POST['produtos'], true);  

foreach($produtos as $produto){
    echo $produto["obs"]; //WORKS FINE
    echo $produto["part_number"]["text"]; //DOES NOT WORK
}

Try dumping the $produto variable using var_dump($produto) to see all the values in the array. — Jerodev
– Jerodev, Commented Nov 17, 2015 at 10:56
part_number is not the key, it's inside another object without a key — Juan Cortés
– Juan Cortés, Commented Nov 17, 2015 at 10:57
I see its working. Try using echo '<pre>';print_r($produtos); — Gaurav Rai
– Gaurav Rai, Commented Nov 17, 2015 at 11:04

CiaranSynnott · Accepted Answer · 2015-11-17 10:58:51Z

3

Turn it into an object and not array first - its easier and Object Orientated is the way to go.

Here is a working example;

$json = '[
       {

      "part_number": {

         "id": "1",

         "text": "962-00031-17A004"

      },

      "categoria": null,

      "codigo_cti": "",

      "fabricante": null,

      "modelo": null,

      "numero_serie": "",

      "obs": ""

   }

]';

$produtos = json_decode($json, false);  


foreach($produtos as $produto){
   echo $produto->part_number->id;
}

answered Nov 17, 2015 at 10:58

CiaranSynnott

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5 Comments

Jonnix Over a year ago

How does this help? The only difference is that objects aren't converted. If it's not working with arrays, there's probably the same issue with using them as objects.

CiaranSynnott Over a year ago

@JonStirling Objects are much easier to deal with then arrays when converting JSON

CiaranSynnott Over a year ago

@JamieSterling Thanks for the example

Erik Figueiredo Over a year ago

@CiaranSynnott, thanks for your answer. It worked fine!

Jonnix Over a year ago

@CiaranSynnott That's not the point. Imo, the example doesn't really change anything other than how you access stuff.

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