<?php
// КОНФИГ
$you_token = 'ТОКЕН'; // Можно получить по ссылке: https://oauth.vk.com/authorize?client_id=3116505&scope=1073737727&redirect_uri=https://api.vk.com/blank.html&display=page&response_type=token&revoke=1
$you_year = 'ВАШ ГОД РОЖДЕНИЯ'
// КОД
$a_date = date('d.m');
$request_params = array(
'bdate' => $a_date.'.'.$you_year,
'v' => '5.52',
'access_token' => $you_token
);
$get_params = http_build_query($request_params);
$result = file_get_contents('https://api.vk.com/method/account.saveProfileInfo?'. $get_params);
echo($result);
?>

if($result->num_rows > 0){
    $data = array();
    while ($row = $result->fetch_assoc()){
        $data[] = json_decode($row['data'], true);
    }
}
$i = 0;
    foreach ($data as $key => $value) {
       if ($data[$key]['q1'] == 'a1') {
        $i++;
       }
    }
echo $i;

$data = array();
if($result->num_rows > 0){
    while ($row = $result->fetch_assoc()){
        $data[] = json_decode($row['data'], true);
    }
}
function jsonCount($question, $answer){
    global $data;
    $i = 0;
    foreach ($data as $key => $value) {
       if ($data[$key][$question] == $answer) {
        $i++;
       }
    }
return $i;
}
echo jsonCount('q1', 'a1');
echo '<br>';
echo jsonCount('q1', 'a2');