Mysql insert doesn't working but no notification appears

[Iris Lauer]

My table has 2 fields a primary with auto increment and then entry_id

why does the below not insert in the table:

-----------------------------------------------
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "ecolog";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}

$entry_id = 5;

$sql = "INSERT INTO orders (entry_id) VALUE ('$entry_id')";


$conn->close();
?>
---------------------


but when adding a error check it does?

---------------------------------------------
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "ecolog";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}

$entry_id = 5;

$sql = "INSERT INTO orders (entry_id) VALUE ('$entry_id')";
if ($conn->query($sql) === TRUE) {
echo "";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}

$conn->close();
?>
-------------------------------------------


cant get my head around why this would be happening.