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<!DOCTYPE html> <html> <body> <?php switch (connection_status()) { case CONNECTION_NORMAL: $txt = 'Connection is in a normal state'; break; case CONNECTION_ABORTED: $txt = 'Connection aborted'; break; case CONNECTION_TIMEOUT: $txt = 'Connection timed out'; break; case (CONNECTION_ABORTED & CONNECTION_TIMEOUT): $txt = 'Connection aborted and timed out'; break; default: $txt = 'Unknown'; break; } echo $txt; ?> </body> </html>
连接处于正常状态
