DirektiveDesDons/BancaDati/BancaDati.php
2023-01-18 09:13:01 +01:00

132 lines
3.6 KiB
PHP

<?php
namespace BancaDati;
use PDO;
use PDOException;
class BancaDati {
private $dbName = "BancaDati";
private $linkName = "localhost";
private $user = "root";
private $pw = "root";
public $pdo;
public function __construct() {
$this->linkDB();
}
private function linkDB() {
try {
$this->pdo = new PDO("mysql:dbname=$this->dbName;host=$this->linkName"
, $this->user
, $this->pw
, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));
} catch (PDOException $e) {
die;
}
}
public function createUUID()
{
$data = openssl_random_pseudo_bytes(16);
$data[6] = chr(ord($data[6]) & 0x0f | 0x40);
$data[8] = chr(ord($data[8]) & 0x3f | 0x80);
return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
}
/**
* Einheitliche Insert Funktion
* @param string $table
* @param array $values
* @return void
* author Simon Bock
*/
public function insert(string $table, array $values){
$value = "";
$column = "";
foreach ($values as $col => $v){
$value .= "'" . $v . "',";
$column .= $col . ",";
}
$value = trim($value, ",");
$column = trim($column, ",");
$sql = "INSERT INTO $table($column) VALUES ($value);";
try {
$sth = $this->pdo->prepare($sql);
$sth->execute();
}catch (PDOException $e){
die;
}
}
/**
* Einheitliche Update Funktion
* @param string $table
* @param string $id
* @param array $values
* @return void
* @author Malte Schulze Hobeling
*/
public function update(string $table, string $id, array $values){
$value = "";
foreach ($values as $col => $v){
$value .= $col . "='" . $v . "',";
}
$value = trim($value, ",");
$sql = "UPDATE " . $table . " SET " . $value . " WHERE `id` = " . $id . ";";
try {
$sth = $this->pdo->prepare($sql);
$sth->execute();
}catch (PDOException $e){
die;
}
}
/**
* Einheitliche Delete Funktion
* @param string $table
* @param string $id
* @return void
* @author Malte Schulze Hobeling
*/
public function delete(string $table, string $id){
$sql = "DELETE FROM " . $table . " WHERE `id` = '" . $id . "';";
try {
$sth = $this->pdo->prepare($sql);
$sth->execute();
}catch (PDOException $e){
die;
}
}
/**
* einheitliche Select Funktion
* @param string $table
* @param array $where ["column"]=>"value" es wird mit LIKE verglichen und mit AND verbunden
* @param array|null $order ["by"]=>"column"; ["order"]=>"ASC|DESC"
* @return void
* @author Malte Schulze Hobeling
*/
public function select(string $table, array $where, array $order = null){
$whereString = "";
foreach ($where as $col => $v) {
if($whereString != ""){
$whereString .= " AND ";
}
$whereString .= "`" . $col . "` LIKE '" . $v . "'";
}
$sql = "SELECT * FROM ".$table." WHERE ".$whereString.";";
if(isset($order["by"])){
$sql .= " ORDER BY ".$order["by"];
}
if(isset($order["order"])){
$sql .= $order["order"];
}
try {
return $this->pdo->query($sql)->fetch();
}catch (PDOException $e){
die;
}
}
}