Jquery帖子：返回500内部服务器错误

Question

我有一个ajax帖子，在执行时会返回一个重装页面。

Javascript：

function backOneSection() {
var current_question = <?php echo $current_question; ?>;
$.post("controller/get_section_back.php", { current : current_question }).done(function()   {
    $('#checkAnswers').modal('hide');
    location.reload(true);
});
}

get_section_back.php

<?php
//Check below...vv

?>

有关信息，它可以在我的测试服务器上使用xampp。但是当我在主机服务器上运行它时，它给了我500内部服务器错误。 请提供解决方案，谢谢

被修改

我已编辑控制器以显示错误消息

<?php
/**
 * Created by IntelliJ IDEA.
 * User: DELL
 * Date: 9/10/2014
 * Time: 6:02 PM
 */
session_start();
include("../lib/meekrodb.2.2.class.php");

$current = $_POST['current'];

$get_sections = DB::query("SELECT DISTINCT(survey_type) FROM fo3_survey_questions");
$i=0;
$sections=[];
foreach($get_sections as $gs)
{
    $i++;
    $sections[$i]=$gs;
}

$get_current_type = DB::queryFirstRow("SELECT survey_type FROM fo3_survey_questions WHERE id_survey_question='$current'");
$current_section = array_search($get_current_type,$sections);
$current_section_type = $sections[$current_section]['survey_type'];

$get_section_ids = DB::query("SELECT id_survey_question FROM fo3_survey_questions WHERE survey_type='$current_section_type'");
$section_ids = [];
foreach($get_section_ids as $ids)
{
    $section_ids[]=$ids['id_survey_question'];
}

$section_id = join(',',$section_ids);

//$delete_this_section = DB::query("DELETE FROM fo3_survey_answers WHERE id_survey_question IN (".$section_id.")");

ini_set("display_errors", 1);

echo error_reporting(E_ALL);
?>

和js一样

function backOneSection() {
    var current_question = <?php echo $current_question; ?>;
    $.post("controller/get_section_back.php", { current : current_question }).done(function(data) {
        console.log(data);
        //$('#checkAnswers').modal('hide');
        //location.reload(true);
    });
}

但它仍然没有显示错误消息，只是500内部服务器错误......