Extract value from an array of array in PHP

Question

I have a form and I serialised it to send it to PHP (AJAX) :

var dataString = $('#form_filtre').serializeArray();

I would like to extract in PHP value where names is "ou" :

    array(1) {
  ["form_serialize"]=>
  array(6) {
    [0]=>
    array(2) {
      ["name"]=>
      string(3) "ctr"
      ["value"]=>
      string(6) "maison"
    }
    [1]=>
    array(2) {
      ["name"]=>
      string(6) "action"
      ["value"]=>
      string(17) "readHomesLocation"
    }
    [2]=>
    array(2) {
      ["name"]=>
      string(2) "ou"
      ["value"]=>
      string(1) "8"
    }
    [3]=>
    array(2) {
      ["name"]=>
      string(2) "ou"
      ["value"]=>
      string(1) "6"
    }
    [4]=>
    array(2) {
      ["name"]=>
      string(5) "quand"
      ["value"]=>
      string(0) ""
    }
    [5]=>
    array(2) {
      ["name"]=>
      string(3) "max"
      ["value"]=>
      string(3) "500"
    }
  }
}

I would like to extrat 6 and 8.

The problem, is that I don't know in advance how many "ou" I will have.

It can be from 0 to n

not hard to research how to filter an array or iterate array and use conditionals to do what is needed. Not clear what you plan to do with this data — charlietfl
– charlietfl, Commented Jan 2, 2016 at 17:14
That doesn't explain much but going back to first statement you can use php array filtering or simply iterate array and check that value and react accordingly — charlietfl
– charlietfl, Commented Jan 2, 2016 at 17:30

jh42 · Accepted Answer · 2016-01-02 17:30:50Z

2

Seems like an easy approach would be to have PHP unserialize the array, then iterate over it with a foreach loop like this:

foreach($array as $index => $subArray) {
    foreach($subArray as $key => $val) {
        if ($key == "ou") {
            $ouArray[$index] = $val;
        }
    }
}

(where $array, obviously, is your unserialized array)

You could also just use $ouArray[] = $val, if you don't care which element the ou belonged to.

answered Jan 2, 2016 at 17:30

jh42

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