get id before insert sql php code example

Example 1: mysql get this inserted id php

$this_id = mysqli_insert_id($db);

Example 2: mysql get last inserted id

-- To get the last inserted auto-increment row ID: --
SELECT LAST_INSERT_ID( optional_expression )

-- If you have just inserted it using a command in C# use: --
int lastId = (Int32)yourCommand.LastInsertedId;

Example 3: how to get last id in database

$db = db_connect();
  $query = $db->query("SELECT * FROM users ORDER BY id DESC LIMIT 1");
  $result = $query->getRow();