Apache错误：AH00422：父级：收到关闭信号-关闭服务器

Question

我想在wampserver 2.4上运行一些php代码，但是每次尝试在localhost上访问该文件时，我都会得到空白页。我已经尝试了在此站点上找到的所有内容（80端口，修改httpconfig），但它们没有起作用。当检查Apache日志错误时，我收到以下消息。我已经为此工作了几个小时。因此，您的帮助将不胜感激。提前致谢。 在以下php代码中：

 php
 <?php
    ini_set(\'display_errors\', 1);
    error_reporting(E_ALL);
    ;

    try {
    $response = array();

    $username="root";
    $pass="";
    $dbh = new PDO('mysql:host=localhost;dbname=test', $username, $pass);
    $name = "aina";
    $email = "luaina.mada";
    $mobile = "0324230671";


     $result=$dbh->query("INSERT INTO students(`Name`,`Email`,`Mobile`)      
      VALUES ('$name','$email','$mobile')");
     if($result){
        $response['value']=1;

     }else{
        $response['value']=0;
    }
    }
    catch (PDOException $e) {
    print "Erreur !: " . $e->getMessage() . "<br/>";
    die();
    }




   ?>

[mpm_winnt:notice] [pid 5564:tid 380] AH00418: Parent: Created child process 3028 
[Wed Apr 10 14:05:26.457486 2019] [mpm_winnt:notice] [pid 3028:tid 312] AH00354: Child: Starting 64 worker threads. 
[Wed Apr 1014:06:56.344843 2019] [mpm_winnt:notice] [pid 5564:tid 380] AH00422:
Parent: Received shutdown signal -- Shutting down the server.