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