针对传统Web表单验证受HTTP限制、用户等待时间长等缺点,提出一种在PHP环境下通过AJAX技术验证表单的方法,从而建立更加友好和响应更加敏捷的表单验证技术。阐述AJAX表单验证规则,验证原理,并给出验证技术细节、实现方法和部分代码。-To tackle with such shortcomings of the conventional web form authentication as HTTP limitations or the long waiting time for users,a method to authenticate forms with AJAX technology in PHP environment is proposed in order to set up a more friendly and more agilely responsive form authentication technology.The paper expounds the AJAX form authentication rules and authentication principles and presents the authentication technology details,implementation methods as well as a portion of the codes.