W3School TIY Editor
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<!DOCTYPE html> <html> <body> <?php $buffer_count = ob_get_level(); echo "缓冲区级别: $buffer_count.<br>"; // 添加一个输出缓冲区 ob_start(); $buffer_count = ob_get_level(); echo "缓冲区级别: $buffer_count.<br>"; // 添加另一个输出缓冲区 ob_start(); $buffer_count = ob_get_level(); echo "缓冲区级别: $buffer_count.<br>"; // 关闭所有缓冲区 ob_end_flush(); ob_end_flush(); ?> </body> </html>