Warning: mysqli_query() expects parameter 1 to be mysqli, bool given i.... WHY THIS ERROR ARRIVE BASICALLY I WHAT TO KNOW

Question

can I know what is the problem with this code? I got this error every time with this
query function.

<?php
$con = mysqli_connect("localhost","root","","voting") || die("not connected");
echo "connected";

if(isset($_POST['ele'])){

global $con;

$vote_ele = "update votes set ele = ele + 1";
$run = mysqli_query($con,$vote_ele);

if($run){
echo "voted to electronics";
}
else{
echo mysqli_error($run);
}

}

?>

Answer 1

thank you Drax

Answer 2

Remove || die(... )
It cast the whole expression to a boolean, whilst con needs to be a mysqli object

Answer 3

yeah i did it

so finally i understood that after confirming dbs is connected we should remove die().Because i effects on mysqli_query()

Answer 4

while define
global $conn now its working thanks

Answer 5

Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in /storage/ssd1/839/12482839/public_html/login.php on line 17