Get value from a array

update

how can I retrieve this value? I need to do that if I will write the value to my database.

array(3) {
 [1]=> NULL  

 [2]=> array(2) {开发者_如何学运维

    [123]=>

    int(123)

    [122]=>

    int(0)

  }

 [3]=> NULL

}

There is something missing in your output. I assume it looks something like:

// var_dump($array);
array(1) {
  [0]=>
  string(2) "39"
}

so you can access the value with $array[0]. Simple array access.

As arrays are the most important data structure in PHP, you should learn how to deal with them.
Read PHP: Arrays.

Update:

Regarding your update, which value do you want? You have a multidimensional array. This is what you will get:

$array[1] // gives null
$array[2] // gives an array
$array[2][123] // gives the integer 123
$array[2][122] // gives the integer 0
$array[3] // gives null

Maybe you also want (have) to loop over the inner array to get all values:

foreach($array[2] as $key => $value) {
    // do something with $key and $value
}

As I said, read the documentation, it contains everything you need to know. Accessing arrays in PHP is not much different than in other programming languages.

The PHP manual contains a lot of examples, it is a pretty could documentation. Use it!

If your array is referenced as $myArray, you can get the string 39 via $myArray[0], i.e., this zeroth item.