shortened php if else block

Question

what is the shorted if else block for this. I seen it somewhere before but cant remember it.

if (isset($_POST[\'value\')){
 $value = $_POST[\'value\'];
} els         


        

Answer 1

$value = filter_input(FILTER_POST, 'value') ?: filter_input(FILTER_GET, 'value');

Or if you have to get multiple variables, do this:

$input = $_POST + $_GET + $defaults;
$value = $input['value'];

(The + operator does not override existing keys in the left array; it works like array_merge($defaults, $_GET, $_POST) in this case.)