PHP reads text content into a two-dimensional array

$content=file_get_contents("myfile.txt");
$array = explode("rn", $content);
$data =array();
foreach ($array as $row) {
 $data[] = explode("||", $row);
}
for($i=0;$i$a=$data [$i][0];
$b=$data[$i][1];
echo "$a && $b ";
}
?>

illustrate: Read the contents of myfile.txt Split the read content with newlines and assign it to the array $array Define $data as an array Traverse the $array array, split it with || and assign it to the $data array Output all values ​​in $data array