check associative array contains value

Question

    Array (    
    [0] => Array ( 
               [questionID] => 47
               [surveyID] => 51
               [userID] => 31 
               [question         


        

Answer 1

As an alternative, my way independent of the array structure (assume $x holds your data structure):

if (preg_match('/"required":[01]/',json_encode($x))) {
    // The array structure contains "required" => 0 or "required" => 1
} else {
    // Negative
}