PHP不工作

这是一个send.php文件，我希望它采用通过表单提交的

$givenRating

，除以对该人进行评分的人数（

$numberOfRatings

），然后在四舍五入后将该数据发送到文本文件。然而，所有发生的事情就是表单框中输入的数字被添加到他们的评级中

$givenRating     = $_POST['rating']; /* Works */
$teacher1        = $_GET['teacher1'];/* Works */
$teacherRating   = file_get_contents("../game/teacher-profiles/" 
                                      . $teacher1 . "/rating.txt"); /* Works */
$numberOfRatings = file_get_contents("../game/teacher-profiles/" 
                                      . $teacher1 . "/ratings.txt"); /* Works */
settype($teacherRating,   "integer"); 
settype($numberOfRatings, "integer");
settype($givenRating,     "integer");

$finalRating     = $givenRating / $numberOfRatings;

if($finalRating > $teacherRating) {
    $send_rating = $teacherRating + $finalRating;
}
if($finalRating < $teacherRating) {
    $send_rating = $teacherRating - $finalRating;
}

$send_rating     = round($send_rating); 
$file            = fopen("../game/teacher-profiles/" 
                          . $teacher1 . "/rating.txt", "w") 
                          or die("Unable to open file!");

fwrite($file, $send_rating);

$givenRating=$_POST['rating']；/*工作*/
$teacher1=$_GET['teacher1']；/*工作*/
$teacherRating=文件\u获取\u内容（“../game/teacher profiles/”
.$teacher1.“/rating.txt”）；/*工作*/
$numberOfRatings=文件获取内容（“../game/teacher profiles/”
.$teacher1.“/ratings.txt”）；/*工作*/
settype（$teacherRating，“integer”）；
settype（$numberOfRatings，“整数”）；
settype（$givenRating，“integer”）；
$finalRating=$givenRating/$numberOfRatings；
如果（$finalRating>$teacherRating）{
$send_rating=$teacherRating+$finalRating；
}
如果（$finalRating<$teacherRating）{
$send_rating=$teacherRating-$finalRating；
}
$send_rating=圆形（$send_rating）；
$file=fopen（../game/teacher profiles/）
.$teacher1.“/rating.txt”，“w”）
或者死亡（“无法打开文件！”）；
fwrite（$file，$send_评级）；

再次检查传递到

文件\u get\u contents（）

方法的字符串

（路径）

，该方法用于代码中的

$teacherRating

和

$numberOfRatings

。他们似乎完全一样。其次，在任何算术运算中使用某些值之前，可能需要将字符串中的某些值显式转换为整数值或浮点值。请参阅下面的代码片段--

似乎与此非常相似，您不同意吗？似乎每个文件都写“2”？同样感谢您的警告，但是这些文件实际上是不同的
rating.txt
是评分，
ratings.txt
是对该教师评分的人数
<?php
    $givenRating     = isset($_POST['rating'])  ? intval(trim($_POST['rating']))  : 0;
    $teacher1        = isset($_GET['teacher1']) ? trim($_GET['teacher1'])         : '';
    $tRatingFile     = "../game/teacher-profiles/". $teacher1 . "/rating.txt";
    $numRatingFile   = "../game/teacher-profiles/". $teacher1 . "/ratings.txt";

    // NOTICE/WARNING: THE $tRatingFile & THE $numRatingFile ARE THE SAME
    // IS THIS CORRECT? COMPARE WITH YOUR ORIGINAL POST...
    $teacherRating   = ($data = file_get_contents($tRatingFile))   ? floatval($data) : 0;
    $numberOfRatings = ($data = file_get_contents($numRatingFile)) ? floatval($data) : 0;
    $send_rating     = 0;    //<== INITIALIZE $send_rating TO ZERO: 0

    /*********************************************/
    /*** UNNECESSARY BLOCK: SEE intval() ABOVE ***/
    /*********************************************/
    /*--------------------------------------------
    | settype($teacherRating,   "integer");      |
    | settype($numberOfRatings, "integer");      |
    | settype($givenRating,     "integer");      |
    ---------------------------------------------*/

    $finalRating     = $givenRating/$numberOfRatings;

    if($finalRating > $teacherRating) {
        $send_rating = $teacherRating + $finalRating;
    }
    if($finalRating < $teacherRating) {
        $send_rating = $teacherRating - $finalRating;
    }

    $send_rating     = round($send_rating);
    $file            = fopen($tRatingFile, "w") or die("Unable to open file!");

    fwrite($file, $send_rating);