Unset rows (based on row name) csv through php - php

Question

I have a .CSV file with static column names. I receive it daily so i have to automatically edit it on a daily base.
On the first line are the row names for example: row1;row2;row3,row4,row5
for example when i want to unset "row2" and "row4".
How can i unset multiple rows based on a name?
I found a some tutorials about deleting lines or rows based on a row position but nothing that helps me completely.
This is what is have now:
$inFile = 'original.csv';
$outFile = 'edited.csv';
$delimiter = ';';
$enclosure = '"';
$read = fopen($inFile, 'r');
$write = fopen($outFile, 'w');
if ($write && $read) {
while (($data = fgetcsv($read)) !== FALSE) {
// how to unset multiple row names
fputcsv($write, $data, $delimiter, $enclosure);
}
}
fclose($write);
fclose($read);
Also, do i need to use the delimiter and enclosure when i fopen the original file?

Answer 1

Hi you can try the updated following code:
$inFile = 'original.csv';
$outFile = 'edited.csv';
$delimiter = ';';
$enclosure = '"';
$removeFields = array('color');
$write = fopen($outFile, 'w');
if ($write) {
$rows = file($inFile);
$first = false;
foreach($rows as $row) {
$csvToPHP = str_getcsv($row, $delimiter, $enclosure);
if (!$first) {
$headers = array_flip($csvToPHP);
$first = true;
}
foreach($removeFields as $remove) {
unset($csvToPHP[$headers[$remove]]);
}
fputcsv($write, $csvToPHP, $delimiter, $enclosure);
}
}
fclose($write);
I used a test csv original.csv:
name,age,color
test1,20,red
test2,32,blue
test3,92,green
test4,12,red
test5,56,orange
Result edited.csv:
name
test1
test2
test3
test4
test5
Hope it helps. Good luck!