Php Upload CSV and Get Column data - php

Question

What I am trying to do is Upload a CSV file with Php. The first line is the Column names and below that the data (of course). Each column name can change depends on the end user uploads. So the main column names we need can change spots (A1 or B1 etc...) So lets say the column I need is B1 and I need to get all the data in B. Not sure on how to go by it. So far this is what I have. Any ideas?
ini_set("allow_url_fopen", 1);
$handle = fopen($_FILES['fileToUpload']['tmp_name'], 'r') or die ('cannot open the file');
while(!feof($handle)) {
$data[] = fgetcsv($handle);
}
var_dump($data);
fclose($handle);
UPDATE:
I am importing this file from .CSV to PHP
I need to search for column header that starts with “SKU” and then “COST”
From there once those are found then I want the whole column… B, E. But those column letters can change, depends on how it is being exported by the end user. I do not need the rows, just columns.

Answer 1

Once the file is uploaded into the server, use something like the following code to parse it and actually use it as an array[];
Code:
$filename = "upload/sample.csv";
if (($handle = fopen($filename, 'r')) !== FALSE){
while (($row = fgetcsv($handle, 1000, ",")) !== FALSE){
print_r($row);
}
}
That's one way of doing it, you could also read more about it here.

Answer 2

If you want the value of a specific column for each row then you need to loop through the results and pick it out. It looks like you are getting an array of arrays so...(EDITED to get the column based on the header name):
$header = $data[0];
unset($data[0]); // delete the header row so those values don't show in results
$sku_index = '';
$cost_index = '';
// get the index of the desired columns by name
for($i=0; $i < count($header); $i++) {
if($header[$i] == 'SKU') {
$sku_index = $i;
}
if($header[$i] == 'COST') {
$cost_index = $i;
}
}
// loop through each row and grab the values for the desired columns
foreach($data as $row) {
echo $row[$sku_index];
echo $row[$cost_index];
}
Should get what you want.