unable to insert url in mysql database using php - php

Question

Html code:
<input type="file" class="form-control" name="video[]" placeholder=" Enter Image file">
<div><h2>OR</h2></div>
<input type="text" class="form-control" name="yurl" placeholder=" Enter youtube embedded code">
<button type='submit' name="save" class='btn btn-success waves-effect waves-light'><i class='fa fa-upload'></i> Save</button>
php code:
<?php
if(isset($_POST['save'])){
$yurl = ($_POST['yurl']);
$new_data=mysqli_real_escape_string($connection, stripslashes($yurl));
echo $yurl;
foreach($_FILES["video"]["tmp_name"] as $key=>$tmp_name){
$temp = $_FILES["video"]["tmp_name"][$key];
$name = $_FILES["video"]["name"][$key];
if(empty($temp))
{
break;
}
move_uploaded_file($temp,"../uploads/galleryvideos/".$name);
$sql = "INSERT INTO gallaryvids (video ,youtube)
VALUES ('$name', '$yurl')";
if (mysqli_query($connection,$sql)) {
?>
<script>
window.location.href = "view_gal_video.php";
</script>
<?php
}
}
}
?>
Url which I want to insert: https://youtu.be/sA0-QXbLnaE
both video and link get inserted
when i only want to insert link not a video it fails but don't gives any error

Answer 1

Updated code with database connection.
if(isset($_POST['save'])){
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$yurl = $_POST['yurl'];
//$video='test';
foreach($_FILES["video"]["tmp_name"] as $key=>$tmp_name){
$temp = $_FILES["video"]["tmp_name"][$key];
$name = $_FILES["video"]["name"][$key];
if(empty($temp))
{
break;
}
move_uploaded_file($temp,"../uploads/galleryvideos/".$name);
$sql = "INSERT INTO gallaryvids (video, youtube)VALUES ('$name', '$yurl')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
}