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//5.N.10 Parser
//http://git.sugarlabs.org/projects/teacher-reporting
//
//Description:
/*
Select and use appropriate operations (addition, subtraction, multiplication, and division) to solve problems, including those involving money.
*/
<?php
$fp = fopen("./4.N.10.dat", "r");
if(!$fp) die ("Cannot open the file");
//Break Each line of the file into its own array element - will have to parse each array element to obtain fields
$lines = file($fp);
$numWords = str_word_count($fp);
//Will always be a multiple of four so $NumRecords will be $numWords/4
$numRecords = $numWords / 5;
//Our Associative array Will also be in sequence 1,5,9,13.. + 4 etc
//Need to tokenize each line and choose appropriate elements ($1)
//This is just to fill the array with Variables. Next we will go through the same process for the remaining fields
// Perform the logic on them add them to additional associate arrays with various meanings
// For Example
for (i=0;i<=$numRecords;i++)
{
$tok = strtok($lines, " ");
/*
Because in the end statement we will have to loop through one of the arrays, which will be localized according
#to specific aritmetic operations (- + / *). We need to account for the fact that some students may not answer a
#question with one of these operations, and if we looped through that particular operation, we would not represent
#that student in any of the logic containted within that loop in the END{} statment. Therefore an associative array
#which absolutely, accounts for any student, contained in the .dat, the CLASS[] array.
$Class[tok[0]];
*/
while ($tok !== false)
{
$Class[tok[0]];
}
}
//in this loop we will cycle through each line of the .dat file and determine at each instance of
for (i=0;i<=$numRecords;i++)
{
$tok = strtok($lines, " ");
while ($tok !== false)
{
$student_id = $tok[0];
$question_id = $tok[1];
$correct_sum = $tok[2];
$submitted_sum = $tok[3];
$correct = $tok[4];
//Need to associate question_id with student
$whose_question[$question_id] = $student_id;
//How many correct submissions are there
if ($submitted_sum == $correct_sum)
{
$num_correct[$student_id]++;
}
}
}
?>
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