Saving specific columns of CSV to another CSV file in PHP - php

Question

so trying to read a csv file and extracting details from the file and wish to store specific columns of the csv to another csv file.
I have managed to extract the specific columns of the input csv file but not really sure how I can write those extracted columns to another csv file.
Here is the part of my work:
$row = 1;
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
}
$file = fopen("editedTable.csv","w");
foreach ( $data as $line) { //working on this part of the code
fputcsv($file, explode(',',$line));
}
fclose($handle);
}
Obviously there is an error in the foreach loop as I am trying to work out the logic.
The data that is extracted is basically first and the second column (data[0], data[1]). Just need this to write to another CSV file. The input csv is just a comma delimited file with 5 columns. Any idea how I can modify the foreach loop and the use the fputcsv method?
Thanks

Answer 1

fputcsv accepts an array on the second parameter.
I think this is what you looking for:
<?php
$file = fopen("editedTable.csv","w");
$row = 1;
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000)) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
fputcsv($file, [$data[0], $data[1]]);
}
}
fclose($handle);
fclose($file);

Answer 2

Because you place the fputs outside of the $data initial loop, you catch only one row, here is the modified code.
$row = 1;
$file = fopen("editedTable.csv","w");
if (($handle = fopen("testtable.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo $data[0] . "\n" . $data[1] . "<br />\n";
$line = $data[0].", ".$data[1];
$line .= "\n";
fputs($file, $line);
}
fclose($handle);
}
fclose($file);