Array in array for array_shift

Question

I have several arrays from $ _REQUEST. For example: $ _REQUEST ['name'] and $ _REQUEST ['email']. That is, inside these arrays there is also an array. It turns out an array in an array.
Assigned them value

$name = $_REQUEST['name'];
$email = $_REQUEST['email'];

now I need to remove the first key with the value. For this I used array_shift

array_shift($name);
array_shift($email);

so i got rid of the first value. But, besides the name and email, there are others. It would not be desirable for everyone to write array_shift. How can I apply to all with one function?
thanx

UPD
For example $_REQUEST array:

Array (
  [name] => Array (
    [0] => 
    [1] => myName
  )
  [email] => Array (
    [0] => 
    [1] => myEmail
  )
  [other] => Array (
    [0] => 
    [1] => otherDatas
  )
)

I must get rid of these empty elements

Do you want to shift all arrays in $_REQUEST? Then you could just loop over them: foreach($_REQUEST as $r) array_shift($r); Or do you have a list/array of all variables that should be processed? — Karsten Koop
– Karsten Koop, Commented Nov 16, 2018 at 9:20

Dirk Scholten · Accepted Answer · 2018-11-16 10:37:47Z

1

If I understand correctly, you have multiple arrays in your request and you want to do an array_shift on all of them?

You could loop through your $_REQUEST and apply that function to all the arrays. Maybe like this:

foreach ($_REQUEST as &$value) {
    if (is_array($value) && empty($value[0])) {
        array_shift($value);
    }
}

That will shift all arrays in your request and leave any other variables alone.

EDIT: Updated the example to only shift arrays where the first element is empty.

EDIT2: Added & to $value so that you can change the $_REQUEST variable directly.

edited Nov 16, 2018 at 10:37

answered Nov 16, 2018 at 9:20

Dirk Scholten

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4 Comments

Dirk Scholten Over a year ago

@Гани Шахмурат I've updated my example. Now it would only remove the first element for the arrays that have an empty first key.

Webdeveloper_Jelle Over a year ago

@ГаниШахмурат this answer you should use

Гани Шахмурат Over a year ago

main.xfiddle.com/e6bb1d36/shift.php here's a sandbox with this code. something is not working.

Dirk Scholten Over a year ago

That's because in that sandbox you print out the $_REQUEST again at the end. My code doesn't change the $_REQUEST variable. If you want to do that then you can use &$value. See my updated answer as well.

Samir Selia · Accepted Answer · 2018-11-16 09:31:16Z

0

array_filter will clear empty values even if they are at any index.

$cleanArray = array();
foreach ($_REQUEST as $key => $value) {
    $cleanArray[$key] = array_filter($value);
}

Output

Array (
  [name] => Array (
    [1] => myName
  )
  [email] => Array (
    [1] => myEmail
  )
  [other] => Array (
    [1] => otherDatas
  )
)

Please note, it will also clear values like null, (blank) and false. Example Reference

edited Nov 16, 2018 at 9:31

answered Nov 16, 2018 at 9:24

Samir Selia

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Comments

The fourth bird · Accepted Answer · 2018-11-16 10:06:56Z

0

What you might do is create an array with the keys that you want from $_REQUEST and use array_intersect_key to get your subset.

Then use array_map to check if the value is an array and return that value using array_filter to remove all values that you consider empty:

$keys = [
    "name",
    "email"
];

$result = array_map(function ($x) {
    if (is_array($x)) {
        return array_filter($x, function($y){
            return null !== $y && "" !== trim($y);
        });
    }
    return $x;
}, array_intersect_key($_REQUEST, array_flip($keys)));

print_r($result);

Demo

edited Nov 16, 2018 at 10:06

answered Nov 16, 2018 at 9:32

The fourth bird

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