$fh = @fopen(csv_file_name, r);if ($fh) { if (flock($fh, lock_ex)) { while (!feof($fh)) { $line = fgets($fh); if (strstr($line, $target_email_address) !== false) { $data = split(,, $line); // $data *is* an array } } flock($fh, lock_un); } fclose($fh);}