链接到一个页面的2个不同选择

Question

我有一个问题是从2个选项中获取2个值，这些值链接到基于所选选项读取数据库的新页面。

如果我选择了第4年和2015年，单击VIEW按钮后的下一页应该是一个包含4个属性（姓名，ID，标记和成绩）的表，位于学生表中。

如何解决这个问题？

html的一部分：

<form role="form" action="" method="post" enctype="multipart/form-data">
<?php choose_first_class(); ?>
    <div class="form-group">
         <label>Year of Study</label>
         <select class="form-control" name="option1">
             <option>Choose one</option>
             <option value="4">Year 4</option>
             <option value="5">Year 5</option>
             <option value="6">Year 6</option>
         </select>
    </div>

    <div class="form-group">
         <label>Year of Class</label>
         <select class="form-control" name="option2">
              <option>Choose one</option>
              <option value="2015">2015</option>
              <option value="2016">2016</option>
              <option value="2017">2017</option>
         </select>
    </div>

<center><button type="submit" name="choose" class="btn btn-primary">View</button></center>

</form>

部分功能：

function choose_first_class(){

if(isset($_POST['choose'])){

    if ('option1' == "4" && 'option2' == "2015"){
        $query = "SELECT * FROM student WHERE student_year = 'T4'' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("a.php");
    }

    else if ('option1' == "4" && 'option2' == "2016"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

   redirect("b.php");
    }else if ('option1' == "4" && 'option2' == "2017"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("c.php");
    }else if ('option1' == "5" && 'option2' == "2015"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

   redirect("d.php");
    }else if ('option1' == "5" && 'option2' == "2016"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("e.php");
    }else if ('option1' == "5" && 'option2' == "2017"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("f.php");
    }else if ('option1' == "6" && 'option2' == "2015"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group  = 'FIRST' ";

    redirect("g.php");
    }else if ('option1' == "6" && 'option2' == "2016"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("h.php");
    }else if ('option1' == "6" && 'option2' == "2017"){
        $query = "SELECT * FROM student WHERE student_year = 'T4' AND study_year = '2015' AND group = 'FIRST' ";

    redirect("i.php");
    }

    else
       echo "try again";
}

}