PHP form submiting - php

Question

I have a form with four values, player1, player2, awayTeam, and homeTeam.
After checking if values are not empty it does not want to send results to database. I am not sure why it does not want to submit.
There are as well two random numbers which will be compared and based on if num1 > num2 record should be submitted.
<?php
$link = mysqli_connect("localhost","test", "passowrd", "test" );
if (mysqli_connect_error()) {
die ("DB has not been connected");
}
// create two random numbers
$Num1 = rand();
$Num2 = rand();
if (isset($_POST['submit'])) {
$playerOne = mysqli_real_escape_string ($link, $_POST['playerOne']);
$playerTwo = mysqli_real_escape_string ($link, $_POST['playerTwo']);
$awayTeam = mysqli_real_escape_string ($link, $_POST['awayTeam']);
$homeTeam = mysqli_real_escape_string ($link, $_POST['homeTeam']);
//check if player one is empty
if (empty($playerOne)) {
echo "Game Creator PSN required!" . "<br>";
}
//check if player two is empty
if (empty($playerTwo)) {
echo "Second Player PSN required!";
}
} else {
//compare two numbers
if ($Num1 > $Num2) {
$sql = "INSERT INTO randomizer (playerOne, playerTwo, awayteam, homeTeam) VALUES (' $playerOne', '$playerTwo', '$awayTeam', '$homeTeam')";
if ($link->query($sql) === true) {
echo "Record Added Sucessfully";
} else {
echo "There was a problem";
}
} else {
$sql = "INSERT INTO randomizer (playerOne, playerTwo, awayteam, homeTeam) VALUES (' $playerTwo', '$playerOne', '$awayTeam', '$homeTeam')";
if ($link->query($sql) === true) {
echo "Record Added Sucessfully";
} else {
echo "There was a problem";
}
}
}
?>

Answer 1

if post data is null, you did nothing. I've never see exit or other exit words, in the SQL words you'll get errs
what different with $num1 > $num2 in your code? they executed the same codes