Parsing an un-named JSON array in PHP

Question

My question: How can I break up and iterate through the JSON array pictured below?

I am making an AJAX web app and I need to serialize an array of objects in Javascript and put them in a url to pass to a php script. This is all going fine and the php script recieves the JSON like so..

$passed = $_GET['result']; 
if(isset($passed)){

$passed = str_replace("undefined" , " " , $passed); /*had to add this to remove the undefined value*/

$json = json_decode(stripslashes($passed));
echo"<br/>";
var_dump($json ); //this is working and dumps an array
}

When I call var_dump on the decoded JSON I echo an output like so...

array(1) { [0]=> object(stdClass)#70 (2) { ["itemCount"]=> int(0) ["ItemArray"]=> array(2) { [0]=> object(stdClass)#86 (6) { ["itemPosition"]=> int(0) ["planPosition"]=> int(0) ["Name"]=> string(5) "dsfsd" ["Description"]=> string(3) "sdf" ["Price"]=> string(0) "" ["Unit"]=> string(0) "" } [1]=> object(stdClass)#85 (6) { ["itemPosition"]=> int(1) ["planPosition"]=> int(0) ["Name"]=> string(4) "fdad" ["Description"]=> string(3) "sdf" ["Price"]=> string(0) "" ["Unit"]=> string(0) "" } } } }

The JSON This is the JSON I am receiving. It seems like some of the pairs don't have names? How can I access elements in this Array?

Thanks alot guys

The Json I would like to parse in PHP

"It seems like some of the pairs don't have names?" ... WHAT in the BIG BLUE MARBLE are you talking about? — Ignacio Vazquez-Abrams
– Ignacio Vazquez-Abrams, Commented Feb 14, 2012 at 1:37
off topic, but what app/tool is that json parsed in.. thats purdy :) — NDBoost
– NDBoost, Commented Feb 14, 2012 at 2:58
@Mike - it was highlighted in the webapp json.parser.online.fr — JackMahoney
– JackMahoney, Commented Feb 16, 2012 at 23:04

Ry- · Accepted Answer · 2012-02-21 03:16:30Z

3

Some of these elements are coming back as stdClass objects as you can see in the var_dump output. You can get at the attributes with the standard object notation, for example, with your $json variable:

echo $json[0]->itemCount; // 0
echo $json[0]->itemArray[0]->itemPostion; // 0

You can also iterate over stdClass instances just like any PHP object, you'll be looping through the public data members, so again with your $json:

foreach(echo $json[0]->itemArray[0] as $key => $value)
  echo 'key: ' . $key . ', value: ' . $value . PHP_EOL;

will loop through that first object, echoing out the member names and values of the object.

edited Feb 21, 2012 at 3:16

Ry-♦

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answered Feb 14, 2012 at 1:40

quickshiftin

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1 Comment

JackMahoney Over a year ago

Thank you that's very helpful - I'm new to php - more used to Java. Thanks for the time.

Ry- · Accepted Answer · 2012-02-14 01:38:02Z

2

You just access them by index:

data[0] // first data item

Note that that's how you would "normally" access an array in the usual sense, so I might be missing something about your question here...

answered Feb 14, 2012 at 1:38

Ry-♦

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