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."
?>
Any idea how to accomplish this: