Reading text file and comparing line with the exact same line returns false

Question

My current code:

$file = fopen(\"countries.txt\",\"r\");
$array = array();

while(!feof($file)) {
    $array[] = fgets($file);
}

fclose($file);

Answer 1

When you compare strings - you should always use '==='.

Answer 2

The problem is, that you have a new line character at the end of each line, so:

test\n !== test
  //^^ See here

That's why it doesn't work as you expect it to.

How to solve it now? Can I introduce to you the function: file(). You can read a file into an array and set the flag to ignore these new lines at the end of each line.

So putting all this information together you will get this code:

$array = file("countries.txt", FILE_IGNORE_NEW_LINES);
$str = "test";

foreach ($array as $key => $val) {

    if ($val == $str) {
        echo $val;
    } else {
        echo "not found";
    }

}