From b0ef6fc88d3ef22617db69214163b8ca4d8059da Mon Sep 17 00:00:00 2001
From: Malte Schulze Hobeling <Malte.Schulze_Hobeling@edu.bib.de>
Date: Wed, 11 Jan 2023 11:02:42 +0100
Subject: [PATCH] add: select

---
 BancaDati/BancaDati.php | 37 +++++++++++++++++++++++++++++++------
 1 file changed, 31 insertions(+), 6 deletions(-)

diff --git a/BancaDati/BancaDati.php b/BancaDati/BancaDati.php
index d68cc7d..c508566 100644
--- a/BancaDati/BancaDati.php
+++ b/BancaDati/BancaDati.php
@@ -2,6 +2,9 @@
 
 namespace BancaDati;
 
+use PDO;
+use PDOException;
+
 class BancaDati {
     private $dbName = "BancaDati";
     private $linkName = "localhost";
@@ -14,11 +17,11 @@ class BancaDati {
     }
     private function linkDB() {
         try {
-            $this->pdo = new \PDO("mysql:dbname=$this->dbName;host=$this->linkName"
+            $this->pdo = new PDO("mysql:dbname=$this->dbName;host=$this->linkName"
                 , $this->user
                 , $this->pw
-                , array(\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION));
-        } catch (\PDOException $e) {
+                , array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION));
+        } catch (PDOException $e) {
             die;
         }
     }
@@ -51,7 +54,7 @@ class BancaDati {
         try {
             $sth = $this->pdo->prepare($sql);
             $sth->execute();
-        }catch (\PDOException $e){
+        }catch (PDOException $e){
             die;
         }
     }
@@ -75,7 +78,7 @@ class BancaDati {
         try {
             $sth = $this->pdo->prepare($sql);
             $sth->execute();
-        }catch (\PDOException $e){
+        }catch (PDOException $e){
             die;
         }
     }
@@ -92,8 +95,30 @@ class BancaDati {
         try {
             $sth = $this->pdo->prepare($sql);
             $sth->execute();
-        }catch (\PDOException $e){
+        }catch (PDOException $e){
             die;
         }
     }
+
+    /**
+     * Einheitliche select Funktion
+     * @param string $table
+     * @param array $selects
+     * @param array $data
+     * @return void
+     * @author Malte Schulze Hobeling
+     */
+    public function select(string $table, array $selects, array $data){
+        $view = "";
+        foreach ($selects as $select){
+            $view .= $select . ",";
+        }
+        $view = trim($view,",");
+        $where = "";
+        foreach ($data as $col => $v) {
+            $where .= $col . "=" . $v . " AND ";
+        }
+        $where = trim($where,"AND ");
+        $sql = "SELECT ".$view." FROM ".$table." WHERE ".$where.";";
+    }
 }
\ No newline at end of file