dom - what is wrong with this code, I am using PHP 8

Question

The loop never stop, also it always print, not only when $i is equal 8

$file  = file_get_contents ($fileUrl);
$i = 0;
        
while ($line = explode ("
", $file)) {
            
    if ($i == 8) {
        print_r ($line);
        exit ();
    }
            
    $i++;
}

By the way, I need to use file_get_contents because I am using DOM, but I use that code because I need the data in line number 8, is there any better way to get a specific line

Answer 1

It is infinite because explode always explodes the entire file string and it never fails. You can read it into an array, but this is only useful without the exit if you are doing things with other lines in the file:

foreach(file($fileUrl) as $line) {
    if ($i == 8) {  // actually the ninth line
        print_r ($line);
    }                
    $i++;
}

Or read it as you are and get the proper line:

$lines = explode("
", $file);
print_r($lines[8]);  // actually the ninth line