Below is my code.I want to access the last inserted id. Since I use static connection variable , it gives me error accesssing it in this way:
$insertedId = $stmt->connection::$pdo->lastInsertId() ;
public function addCar()
{
$this->rate=$param6;
if(!empty($this->name))
{
$sql="INSERT INTO car(car_name,car_maker,car_type,car_colour,num_passanger)VALUES('{$this->name}','{$this->maker}', '{$this->type}','{$this->colour}','{$this->passanger}')";
$stmt =connection::$pdo->prepare($sql);
$stmt->execute();
echo "inserted id ".$insertedId = $stmt->lastInsertId() ;
}
//$this->rentalRate();
}
UPDATE:
Simple way to use the lastInsertId() is:
// your connection with database
$con = new PDO("mysql:host=$hostname;dbname=$dbname",$dbuser,$dbpass);
// insert query
$query = "INSERT INTO tbl_name SET col_name1 = ?, col_name2 = ?";
// '$con' is your PDO connection variable
$stmt = $con->prepare($query);
$stmt->bindParam(1, $variable1); // value for col_name1 to be stored
$stmt->bindParam(2, $variable2); // value for col_name2 to be stored
$stmt->execute();
....
// gives current inserted id
$lastId = $con->lastInsertId();
In your case try: $lastId = connection::$pdo->lastInsertId();
Related
I have a query, and I want to get the last ID inserted. The field ID is the primary key and auto incrementing.
I know that I have to use this statement:
LAST_INSERT_ID()
That statement works with a query like this:
$query = "INSERT INTO `cell-place` (ID) VALUES (LAST_INSERT_ID())";
But if I want to get the ID using this statement:
$ID = LAST_INSERT_ID();
I get this error:
Fatal error: Call to undefined function LAST_INSERT_ID()
What am I doing wrong?
That's because that's an SQL function, not PHP. You can use PDO::lastInsertId().
Like:
$stmt = $db->prepare("...");
$stmt->execute();
$id = $db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
lastInsertId() only work after the INSERT query.
Correct:
$stmt = $this->conn->prepare("INSERT INTO users(userName,userEmail,userPass)
VALUES(?,?,?);");
$sonuc = $stmt->execute([$username,$email,$pass]);
$LAST_ID = $this->conn->lastInsertId();
Incorrect:
$stmt = $this->conn->prepare("SELECT * FROM users");
$sonuc = $stmt->execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0
You can get the id of the last transaction by running lastInsertId() method on the connection object($conn).
Like this $lid = $conn->lastInsertId();
Please check out the docs https://www.php.net/manual/en/language.oop5.basic.php
I have a query, and I want to get the last ID inserted. The field ID is the primary key and auto incrementing.
I know that I have to use this statement:
LAST_INSERT_ID()
That statement works with a query like this:
$query = "INSERT INTO `cell-place` (ID) VALUES (LAST_INSERT_ID())";
But if I want to get the ID using this statement:
$ID = LAST_INSERT_ID();
I get this error:
Fatal error: Call to undefined function LAST_INSERT_ID()
What am I doing wrong?
That's because that's an SQL function, not PHP. You can use PDO::lastInsertId().
Like:
$stmt = $db->prepare("...");
$stmt->execute();
$id = $db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
lastInsertId() only work after the INSERT query.
Correct:
$stmt = $this->conn->prepare("INSERT INTO users(userName,userEmail,userPass)
VALUES(?,?,?);");
$sonuc = $stmt->execute([$username,$email,$pass]);
$LAST_ID = $this->conn->lastInsertId();
Incorrect:
$stmt = $this->conn->prepare("SELECT * FROM users");
$sonuc = $stmt->execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0
You can get the id of the last transaction by running lastInsertId() method on the connection object($conn).
Like this $lid = $conn->lastInsertId();
Please check out the docs https://www.php.net/manual/en/language.oop5.basic.php
I am trying to delete a row that matches a string that is passed in to the method.
$conn = new PDO("mysql:host=$dbhost;dbname=$dbname",$dbuser,$dbpass);
$data = array($_POST["username"]);
$stmt = $conn->prepare("DELETE FROM Table WHERE username = username=? ");
$stmt->execute($data);
I tried a few combinations of the SQL statement but cannot get one to work
// Store user input in a variable
$data = $_POST["username"];
// Prepare the query
$stmt = $conn->prepare("DELETE FROM Table WHERE username=:username");
// Bind the value
$stmt->bindValue(':username', $data, PDO::PARAM_STR);
// Execute the query
$success = $stmt->execute();
// If query succeeded, display the number of affected rows
if ($success) {
$affected_rows = $stmt->rowCount();
echo $affected_rows;
}
Spot the SQL error:
username = username=?
Should be
username = ?
I have a query, and I want to get the last ID inserted. The field ID is the primary key and auto incrementing.
I know that I have to use this statement:
LAST_INSERT_ID()
That statement works with a query like this:
$query = "INSERT INTO `cell-place` (ID) VALUES (LAST_INSERT_ID())";
But if I want to get the ID using this statement:
$ID = LAST_INSERT_ID();
I get this error:
Fatal error: Call to undefined function LAST_INSERT_ID()
What am I doing wrong?
That's because that's an SQL function, not PHP. You can use PDO::lastInsertId().
Like:
$stmt = $db->prepare("...");
$stmt->execute();
$id = $db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
lastInsertId() only work after the INSERT query.
Correct:
$stmt = $this->conn->prepare("INSERT INTO users(userName,userEmail,userPass)
VALUES(?,?,?);");
$sonuc = $stmt->execute([$username,$email,$pass]);
$LAST_ID = $this->conn->lastInsertId();
Incorrect:
$stmt = $this->conn->prepare("SELECT * FROM users");
$sonuc = $stmt->execute();
$LAST_ID = $this->conn->lastInsertId(); //always return string(1)=0
You can get the id of the last transaction by running lastInsertId() method on the connection object($conn).
Like this $lid = $conn->lastInsertId();
Please check out the docs https://www.php.net/manual/en/language.oop5.basic.php
I have a connection to a database and want to update(override) an existing string called profile by a new one.
$uid = 1;
$serProfile = 'abc';
$sql = 'UPDATE
Users
SET
profile = ?
WHERE
id = ?';
$stmt = $db->prepare($sql);
if (!$stmt) { safeExit($db->error, 'msgError'); }
$stmt->bind_param('si', $serProfile, $uid);
if (!$stmt->execute()) { safeExit($stmt->error, 'msgError'); }
$stmt->close();
However, although the variables exist, the fields exist and there are no errors, the values in the database do not get changed. How to resolve this behaviour?
Test this one
$sql = 'UPDATE Users SET profile = :profile WHERE id = :id';
$stmt = $db->prepare($sql);
$stmt->execute(array('id'=>$uid,'profile'=>$serProfile));