how to insert a query within a class? - php

Question

I am working on a class where I want to check if everything is filled in and if everything is filled in then insert into the database, but I am stuck on how I can insert within my class so I hope you guys could help me. I never got any errors of this problem.
Here is the code:
<?php
class clsCatCheck
{
private $catName;
public function __construct($catName)
{
$this->setCatName($catName);
}
public function setCatName($catName)
{
$connect = new PDO('mysql:host=hostname;dbname=dbname', "username", "password");
$select = $connect->prepare('SELECT * FROM category');
$row = $select->fetch();
if (isset($_POST['addCat'])) {
if (empty($_POST['catName'])) {
throw new Exception('Geen categorienaam is ingevuld<br />');
}
//if (strlen($_POST['catName'] <= 4)) {
// throw new Exception('De categorienaam moet minimaal 4 letters of langer zijn<br />');
//}
if ($_POST['catName'] == $row[1]) {
throw new Exception('Deze categorienaam bestaat al<br />');
}
}
else {
$query = $connect->prepare("INSERT INTO category (catName) VALUES (:catName = catName)");
$query->bindParam(':catName', $_POST['catName'] ,PDO::PARAM_STR);
$query->execute();
}
$this->catName = $catName;
}
public function getCatName()
{
return $this->catName;
}
}
Already thanks for helping.
If you want more code from me just ask.

Answer 1

You are not binding parameters correctly.
Corrected code:
$query = $connect->prepare("INSERT INTO category (catName) VALUES (:catName)");
$query->bindParam(':catName', $_POST['catName'] ,PDO::PARAM_STR);