Csv find duplicate entries

PHP
2

The simpliest way to do that is use an array to store already added values and check for duplicates.

if((($handle = fopen($fajl, 'r')) !== false)) {
    $stored = [];
    while(($data = fgetcsv($handle,1000, ',')) !== false) {

        //skip current row if it is a duplicate
        if (in_array($data[0], $stored)) { continue;}

        $sql = "INSERT INTO csvtrenutna (brpolise, iznos) VALUES('".$data[0]."', '".$data[1]."')";
        pg_query($konekcija, $sql);

        //remember inserted value
        $stored[] = $data[0];

    }
}