Creating pages from a csv file - php

Question

I've created a page that grabs data from a CSV (http://liamjken.com/aim-parse/aim-websites-new.csv) and displays it on this page http://www.liamjken.com/aim-parse/parse.php?17
?17 references the row in the csv file. so if I change that to ?10 it pulls the info from a different row.
What I would like to do instead of using the row number is use the $vin_num value. so if I put ?1FMCU9GD9KUC40413 at the end of the URL it would display the row that contains that Number.
here is the code I have currently, its basically cobbled together from multiple different trends I found so if you notice other potential problems id be happy to hear about them.
<?php
$qstring = $_SERVER['QUERY_STRING'];
$row = $qstring; // The row that will be returned.
$data = get_row('aim-websites-new.csv', $row);
'<pre>'.print_r($data).'</pre>';
function get_row($csv, $row) {
$handle = fopen("$csv", 'r');
$counter = 0;
$result = '';
while ( ($data = fgetcsv($handle)) !== FALSE ) {
$counter++;
if ( $row == $counter ) {
$vin_num="$data[12]";
$model="$data[10]";
$make="$data[9]";
$year="$data[8]";
ob_start();
?>
<h1>VIN: <?php echo $vin_num; ?></h1>
<h1>Year: <?php echo $year; ?></h1>
<h1>Make: <?php echo $make; ?></h1>
<h1>Model: <?php echo $model; ?></h1>
<?php
$output = ob_get_clean();
ob_flush();
return $output;
}
}
}
?>

Answer 1

<?php
function extract_data($file)
{
$raw = file($file); // file() puts each line of file as string in array
$keys = str_getcsv(array_shift($raw)); // extract the first line and convert into an array
// Look through the rest of the lines and combine them with the header
$data = [];
foreach ($raw as $line) {
$row = str_getcsv($line);
$data[] = array_combine($keys, $row);
}
return $data;
}
function get_record($data, $vin)
{
foreach ($data as $record) {
if ($record['VIN'] === $vin)
return $record;
}
return null;
}
$data = extract_data('aim-websites-new.csv');
$vin = $_SERVER['QUERY_STRING'];
if (empty($vin)) {
echo '<h1>No VIN provided</h1>';
exit;
}
$record = get_record($data, $vin);
if ($record === null) {
echo '<h1>No record found</h1>';
exit;
}
echo '<h1>' . $record['VIN'] . '</h1>';
echo '<h1>' . $record['Year'] . '</h1>';
echo '<h1>' . $record['Make'] . '</h1>';
echo '<h1>' . $record['Model'] . '</h1>';
echo '<pre>' . print_r($record, true) . '</pre>';
If you don't trust that the records will have valid VINs, you can use the code posted here to validate: How to validate a VIN number?