php parse array values

Question

I'm not very good when it comes to arrays so here's probably something very simple but not for me! I'm getting an array of values via POST and I need to parse them and store the values in a table. How should I use the classic parsing such as:

foreach($array as $a) {
  $text = $a->text;
  $name = $a->user->name;
}

etc to parse an array looking like this:

[item] => Array
        (
            [tags] => Array
                (
                    [0] => Bluetooth
                    [1] => WiFi
                    [2] => USB
                )

        )

This is the entire POST array:

Array
(
    [prodid] => 
    [Submit] => Save
    [productcode] => 797987
    [cat_id] => 66
    [brand] => Fysiomed
    [name] =>  asdc asdc asd c
    [productnew] => yes
    [item] => Array
        (
            [tags] => Array
                (
                    [0] => Bluetooth
                    [1] => WiFi
                    [2] => USB
                )

        )

    [size] => 1
    [barcode] => 7979871
    [price] => 233.00
    [priceoffer] => 0.00
    [stock] => 50
    [weight] => 0.30
    [orderby] => 1
)

It's not clear wht you want to do. You can't put a multi-dimensional array into a 2 dimensional table. You need to expand a bit. — Pete
– Pete, Commented May 4, 2012 at 15:08
I need to get all the tags as strings and add them to a table in my db. — bikey77
– bikey77, Commented May 4, 2012 at 15:14

Pete · Accepted Answer · 2012-05-04 15:23:25Z

3

if( isset($_POST['item']) && isset($_POST['item']['tags']) ){
  foreach($_POST['item']['tags'] as $tag){
    //do stuff...e.g.
    echo $tag;
  }
}

answered May 4, 2012 at 15:23

Pete

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Comments

user1056272 · Accepted Answer · 2012-05-04 15:08:21Z

1

if(isset($_POST) && !empty($_POST)) {
  foreach($_POST as $key => $value) {
    if($key == 'item') {
      echo $value[$key]['tag'][0]. '<br>';
      echo $value[$key]['tag'][1]. '<br>';
      echo $value[$key]['tag'][2]. '<br>';
    } 
  }
}

answered May 4, 2012 at 15:08

user1056272

1 Comment

Pete Over a year ago

You don't have to iterate through teh whole $_POST array

sarveshseri · Accepted Answer · 2012-05-04 15:36:59Z

Looks like your array is shaped like this, check this

$array = array( "item" => array( "tags" => array("Bluetooth", "Wifi", "USB" ) ) );
var_dump($array);

You will see something like this

array(1) {
  ["item"]=>
  array(1) {
    ["tags"]=>
    array(3) {
      [0]=>
      string(9) "Bluetooth"
      [1]=>
      string(4) "Wifi"
      [2]=>
      string(3) "USB"
    }
  }
}

Now for parsing this array,

foreach($array as $in => $val) {
    // as $array has key=>value pairs, only one key value pair
    // here $in will have the key and $val will have the value
    // $in will be "item"
    print $in; // this will print "item"
    foreach($val as $in2 => $val2 ){
        // only one key : "tags"
        print $in; // this will print "tags"
        print $val2[0];  // this will print "Bluetooth"
        print $val2[1];  // this will print "Wifi"
    } 
}

I hope this clears you doubt regarding arrays.

I will use this as an example to try and understand them more. Thank you.

jarchuleta · Accepted Answer · 2012-05-04 15:38:43Z

1

Are you just trying to get the text out? try this.

foreach($array['item']['tags'] as $tag) {
   $text = $tag;
}

edited May 4, 2012 at 15:38

answered May 4, 2012 at 15:01

jarchuleta

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3 Comments

bikey77 Over a year ago

This outputs the following Warning: Invalid argument supplied for foreach()

andrewsi Over a year ago

'tag' should be 'tags', I think.

jarchuleta Over a year ago

You have to replace array with whatever your array is called. $_POST maybe.

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