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Text Processing

Variable and Type Related Extensions

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PHP 提供了全缓冲的用户级输出缓冲区，包含启动、操作和关闭缓冲区的函数（大多数 ob_ * 函数），以及两个刷新底层系统缓冲区的函数（ flush() 和 ob_implicit_flush() ）。其中一些功能也可以使用合适的 php.ini 配置来设置。