PHP: Check if the value exists in csv file - php

Question

I've a list of clients in csv file as:
Name,Credited
ABC,Y
BCD,Y
XYZ
ABC
My task is to check, if the client already exists in the list:
IF yes, check if he is already credited.
If yes, delete that name from the list.
I've started writing the code, but not sure how can I achieve my task.
//Store the file in array
$fcsv = file($files);
foreach($headers as $header) {
// Push headers to new array.
array_push($headings, strtolower(trim($header)));
}
Can someone please help!!
Thanks in advance

Answer 1

Loop through all the lines in the file, and use str_getcsv() to parse it as a CSV line. Then check if the first column is the client name and the second is Y.
$clients = file($files, FILE_IGNORE_NEW_LINES);
$deleted = false;
foreach ($clients as $index => $client_line) {
$split = str_getcsv($client_line);
if ($split[0] == $client) {
if (isset($split[1]) && $split[1] == 'Y') {
unset($clients[$index]);
$deleted = true;
}
break; // Stop searching after we found the client
}
}
// Rewrite the file if we deleted the client.
if ($deleted) {
file_put_contents($files, implode("\n", $clients));
}

Answer 2

Here's the basic implementation of searching if the name of the client exist in the given csv file.
$client = "ABC";
$fcsv = file('uploads/task.csv');
foreach ($fcsv as $key => $value) {
$temp = explode(',', $value);
if ($temp[0] == $client) {
unset($fcsv[$key]);
}
}
Each rows in csv, if you look at it using var_dump() would look like this,
"Name,Credited"
If your csv file contains of more than one rows, this line
$fcsv = file('uploads/task.csv');
will return array of rows, using a loop split the content of each rows using explode(',', $value);for you to have a data in every column of the rows.
Like in the example above you can now chose, which column you need look, to be able for you to compare where the client exist and delete.