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php mysql error Uncaught mysqli_sql_exception – PHP Versions

Fatal error: Uncaught mysqli_sql_exception: You have an error in your
SQL syntax; check the manual that corresponds to your MariaDB server
version for the right syntax to use near ‘WHERE SET numb=’61’ WHERE
ID=’#ID” at line 1 in C:xampphtdocsweb_2.1phpsend.php:20 Stack
trace: #0 C:xampphtdocsweb_2.1phpsend.php(20):
mysqli_query(Object(mysqli), ‘UPDATE depo…’) #1 {main} thrown in
C:xampphtdocsweb_2.1phpsend.php on line 20

I trying to add numbers in mysql database, for example:

session_start();

include('info.php');

$add = $_POST['submit'];

$ID=$_SESSION['ID'];

$query="SELECT numb FROM `prof` WHERE ID='$ID'";

$result=mysqli_query($conn, $query);

$pr=mysqli_num_rows($result);

if($pr>0){

    $row=mysqli_fetch_array($result);
    $i=$row['numb'];
    $total = $i + $add;


$querys="UPDATE `prof` WHERE SET numb='$total' WHERE ID='$ID'";

$result=mysqli_query($conn, $querys);

    header("Location: send.php");

} else{

    $sql="INSERT INTO `prof` (ID, numb)VALUES($ID, $add)";
    $result=mysqli_query($conn, $sql);
    header("Location: /web_2.1/profile.php");
}

but after sending first query I can’t send second one and getting this error

Tags:

2

Answers


  1. 0

    This query has two WHERE keywords, that is not valid SQL, there can only be one WHERE:

    $querys="UPDATE prof WHERE SET numb='$total' WHERE ID='$ID'";

    What you are looking for seems to be an AND condition, replacing the 2nd WHERE with an AND keyword instead:

    $querys="UPDATE prof WHERE SET numb='$total' AND ID='$ID'";
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  2. 0

    Try with below query string

    $querys = "UPDATE `prof` SET numb='$total' WHERE ID='$ID'";
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