Won't read my text file

[belbin09]

My code works fine for the most part, unfortunately though it doesn't seem to be reading the student.txt file. If one student is registered for a course it doesn't let anyone else register for the same course.

<?php

$students = "student.txt"; // text file for students and student number
$reg = "load.txt";

//converting a string into a variable

$name = $_POST["name"];
$number = $_POST["snumber"];
$course = $_POST["pcourse"];

//open student file and explode into an array



$found = 0;

// turning students into an array to read

$fileHandle = fopen($students, "r") or die ("Student file does not exist");

while($line=fgets($fileHandle))
{
  $drop = explode(',',$line);

  if($name==$drop[0]&&$number == trim($drop[1])) //trip to remove whitespace in student number
  {
    $found = 1;
    break; // break if found
  }
}

fclose($fileHandle);
$toRep="";

if($found==1)
{
  $fileHandle = fopen("course.txt", 'r');
  while($line=fgets($fileHandle))
  {
    $drop = explode('||',$line);

    if($drop[1]==$course)
    {
      $found = 2;  // course found
      if($drop[2]>0)
      {
        $found = 3;       // couse has seats  
        $toRep= $line;
        break;
      }
    }

  }
}
else
{
  echo "Student could not be found.";
  die();
}



if($found ==1)
{
  echo "The course cannot be found";
  die();
}

if($found==2)
{
  echo "The course is full";
  die();
}


if($found==3)
{
  $loadHandle = fopen("load.txt",'r'); 
  while($line = fgets($loadHandle))
  {
    $drop = explode(',', $line);

    if(trim($drop[1])==$course)
    {
      echo "You have already registered for the course.";
      die();
    }
  }
}

$loadHandle2 = fopen("load.txt", 'a');

fwrite($loadHandle2,"$name,$course\n");

fclose($loadHandle2);
fclose($loadHandle);

$courseHandle = fopen('course.txt', 'r');
$whole = file_get_contents('./course.txt');// read the whole file

$drop = explode('||', $toRep);


$count = (int)$drop[2];
$count = $count - 1; // make one seat less

$newStr = $drop[0]."||".$drop[1]."||".$count."\n";  // make a new string with new seat count

$whole =str_replace($toRep, $newStr, $whole); // replace the old text with new


$courseHandle2 = fopen('course.txt', 'w');
fwrite($courseHandle2, $whole); // overwrite the entire file.

echo "Sucessfully Enrolled."

?>

[phpmillion]

If the code works for "the most part", you should tell us exactly what the problem is and where exactly your code fails. Without this essential information, we can only keep guessing for a long time, but that won't help you much...

[AzeS]

Hey; what about sql my friend ? ^^ 

[mac_gyver]

if your goal is to test if a student is registered for a class, wouldn't you logic need to test both the student number and the class number? you are only testing the class number and it's starting to look to us, like you are not even looking at and thinking about what your code is doing.