stk27 dostum dediğin gibi cookie şeklinde tutmaya çalıştım verileri.

setcookie("array[start_date]", "$start_date");
setcookie("array[end_date]", "$end_date");
setcookie("array[graduated_type]", "$graduated_type");
setcookie("array[graduated_faculty]", "$graduated_faculty");
setcookie("array[graduated_department]", "$graduated_department");
setcookie("array[alumni_name]", "$alumni_name");
setcookie("array[alumni_surname]", "$alumni_surname");
setcookie("array[education_type]", "$education_type");

echo $_COOKIE["array"]["start_date"];
echo $_COOKIE["array"]["end_date"];
echo $_COOKIE["array"]["graduated_type"];
echo $_COOKIE["array"]["graduated_faculty"];
echo $_COOKIE["array"]["graduated_department"];
echo $_COOKIE["array"]["alumni_name"];
echo $_COOKIE["array"]["alumni_surname"];
echo $_COOKIE["array"]["education_type"];

$start_date = $_COOKIE["array"]["start_date"];
$end_date = $_COOKIE["array"]["end_date"];
$graduated_type = $_COOKIE["array"]["graduated_type"];
$graduated_faculty = $_COOKIE["array"]["graduated_faculty"];
$graduated_department = $_COOKIE["array"]["graduated_department"];
$alumni_name = $_COOKIE["array"]["alumni_name"];
$alumni_surname = $_COOKIE["array"]["alumni_surname"];
$education_type = $_COOKIE["array"]["education_type"];



fakat hala aynı şekilde hata almaya devam ediyorum.