Question

I’m trying to display a single error message “Match not found”, if the match isn’t found in the while loop. At the moment, I know that if I put an “else” statement inside, it’ll just display “Match not found” for every line until it reaches the end of the loop.

Here’s what I have so far:

    <?php
        $filename = "roster.txt";
        $fp = fopen($filename, "r") or die("Couldn't open $filename");

        while(!feof($fp))
        {   $line = fgets($fp);

            if (preg_match('/Navi/',$line)) {
                print "$line<br>";      
            }
        }
        fclose($fp)
    ?>

Thanks for any help I may get!

Answer 1

Set a match as false before while loop and set it to true when match is found.
After while loop check match variable .

$match = false;
while(!feof($fp))
{   $line = fgets($fp);
$answer = str_replace(":"," ",$line);   
  if ((preg_match("/$lastname/",$line)) && (preg_match("/$id/",$line))) {
      $match = true;
      print "$answer<br>";        
  }
}
if ($match === false) {
    echo 'Match not found';
}