Reputation: 1903
In my query the update statement doesn't work, the error given is:
Number of parameter doesn't match with prepared statement
this is my code:
public function update_resource($resource)
{
$mysqli = new MySQLi(HOST, USERNAME, PASSWORD, DATABASE);
$this->connection_state($mysqli);
$id = $resource['id'];
$descrizione = $resource['descrizione'];
$sigla = $resource['sigla'];
$colore = $resource['colore'];
$planning = $resource['planning'];
try
{
$query = "UPDATE risorse SET descrizione = '$descrizione'
AND sigla = '$sigla' AND colore = '$colore' AND planning = '$planning'
WHERE id = '$id' ";
$stmt = $mysqli->prepare($query);
$stmt -> bind_param("ssssi", $descrizione, $sigla, $colore, $planning, $id);
echo $query;
if($stmt->execute())
{
echo "Added!";
}
else
{
echo "Err: " . $stmt->error;
}
}catch(Exception $e){ echo $e->getMessage(); }
}
The code go into the Added
condition but the query fail, what's the problem?
Upvotes: 1
Views: 59
Reputation: 169
public function update_resource($resource)
{
$mysqli = new mysqli(HOST, USERNAME, PASSWORD, DATABASE);
if ($mysqli->connect_errno) {
echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}
$id = $resource['id'];
$descrizione = $resource['descrizione'];
$sigla = $resource['sigla'];
$colore = $resource['colore'];
$planning = $resource['planning'];
try
{
$query = "UPDATE risorse SET descrizione = '$descrizione'
, sigla = '$sigla', colore = '$colore', planning = '$planning'
WHERE id = '$id' ";
$stmt = $mysqli->prepare($query);
$stmt -> bind_param($descrizione, $sigla, $colore, $planning, $id);
echo $query;
if($stmt->execute())
{
echo "Added!";
}
else
{
echo "Err: " . $stmt->error;
}
}catch(Exception $e){ echo $e->getMessage(); }
}?
Upvotes: 2
Reputation: 65
please visit on http://php.net/manual/en/pdostatement.bindparam.php.you got your answer.see Example #1 Execute a prepared statement with named placeholders
Upvotes: 0
Reputation: 54831
Your problem is that you don't have any placeholders in your query. Refer to manual to see how placeholders should be set.
In general, placeholders are ?
which later will be replaced with values, so your query should look like:
$query = "UPDATE risorse SET descrizione = ?
AND sigla = ? AND colore = ? AND planning = ?
WHERE id = ?";
Upvotes: 0