Php 链接到一个页面的2个不同选择

我有一个问题，从链接到新页面的2个选择中获取2个值，该页面根据所选选项读取数据库

如果我选择4年级和2015年级，单击查看按钮后的下一页应该是一个表，该表具有4个属性（名称、id、分数和成绩），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>

---

}

'option1'==“4”和&'option2'==“2015”

您正在比较两个字符串。这将不起作用。

如果（$\u POST['option1']=“4”&&$\u POST['option2']=“2015”）

？哇……谢谢。。。它起作用了。。但我还有别的办法吗？因为这里只有两个选择。3个或更多选项如何？如果我用这种样式，应该太长了。我更喜欢php。

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";
}