How to use filter_input with array?

Question

I tried to use filter_input to load my POST value into a variable:

$tmp = filter_input(INPUT_POST, "p_member");    // fails

Output:

bool(false)

I also tried $tmp = filter_input_array(INPUT_POST, "p_member"); // fails

Output:

bool(false)

But this works:

$tmp = (array)@$_POST['p_member'];

Output:

Your answer is always here php.net/manual/en/function.filter-input.php — Azael
– Azael, Commented Oct 1, 2019 at 16:52
To add on to @Azael's comment, use the FILTER_REQUIRE_ARRAY option — Das_Geek
– Das_Geek, Commented Oct 1, 2019 at 16:54
@Das_Geek, I tried $tmp2 = filter_input(INPUT_POST, "p_member", FILTER_REQUIRE_ARRAY); result -> bool(false) — Black
– Black, Commented Oct 1, 2019 at 16:57

Black · Accepted Answer · 2019-10-02 14:27:28Z

2

here is an answer based on link

If your $_POST contains an array value:
$_POST  = array(
  'var' => array('more', 'than', 'one', 'values')
);
you should use FILTER_DEFAULT AND FILTER_REQUIRE_ARRAY option:
var_dump(filter_input(INPUT_POST, 'var', FILTER_DEFAULT , FILTER_REQUIRE_ARRAY));
Otherwise it returns false.

edited Oct 2, 2019 at 14:27

Black

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answered Oct 1, 2019 at 16:57

Umer Abbas

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1 Comment

Black Over a year ago

Thx, we have to use both FILTER_DEFAULT , FILTER_REQUIRE_ARRAY to make it work.

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