add delete and update location handler

editlocationhandler.php

+<?php
+    require("includes/config.php");
+    if (isset($_GET["delete"])){
+        $id = $_GET["id_active"];
+        $location = $_GET["delete"];
+
+        $sql = "DELETE FROM driver_locations WHERE ID = $id AND location = '$location'";
+        if ($conn->query($sql) === TRUE) {
+            header("Refresh:0; url=editpreferredlocations.php?id_active=" . $id);
+            exit;
+        } else {
+            echo "Error: " . $sql . "<br>" . $conn->error;
+        }
+    }
+
+    if (isset($_GET["update"])){
+        $id = $_GET["id_active"];
+        $location = $_GET["location"];
+        $update = $_GET["update"];
+
+        $sql = "UPDATE driver_locations SET location='$update' WHERE ID=$id AND location='$location'";
+        if ($conn->query($sql) === TRUE) {
+            header("Refresh:0; url=editpreferredlocations.php?id_active=" . $id);
+            exit;
+        } else {
+            echo "Error: " . $sql . "<br>" . $conn->error;
+        }
+    }
+
+?>
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