PHP – 在脚本结束前发送 HTTP 头部的简单方法
通常情况下，PHP 脚本会在所有处理完成之后才发送 HTTP 响应。如果你想在发送 302 重定向等头部信息后继续执行耗时操作（如 sleep），直接使用 header() 会导致客户端等待。本文介绍了一种无需复杂配置的简单方法，让 PHP 在发送完头部后继续后台处理，从而提升用户体验。
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