Check POST Data - JSON Array

Question

I´m trying to check the data of my JSON file. It works for strings in the json file, but how to handle it with arrays in the array?

What i send:

{
    "info" : "test",
    "data" : [
        { 
            "startdate": "2018-01-01T10:00:00+0100",
            "enddate": "2018-01-01T17:00:00+0100"
        }
     ]
}

What i´ve yet:

$dataReq = array(
    'info' => $request->get('info'),
    'date' => $request->get('date'), // my array
);

foreach ($dataReq as $a => $value) {
    if(empty($value)) {
        return new View('The field \''.$a.'\' is required!');     
    }
}

But the function empty doenst work for arrays so far. It will return false, cause the array is there. How can i check the "startdate" key?

btw: i´m using symfony3(FOSRestBundle), php 7.0

Answer 1

You can check if the value is an array and filter null values from it, then test if it's empty.

$dataReq = array(
    'info' => $request->get('info'),
    'data' => $request->get('data'), // my array
);

foreach ($dataReq as $a => $value) {
    if(is_array($value)) $value = array_filter($value);
    if(empty($value)) {
        return new View('The field \''.$a.'\' is required!');     
    }
}

array_filter() function's default behavior is to remove from array all values equal to null, 0, '' or false if no callback is passed.

Note: I assume you wanted to retrieve data and not date.

As commented by LBA, I also suggest to check the Symfony Validation component to deal with that instead.