mysql 底层的一些 连接错误信息展示

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'server has gone away',
'no connection to the server',
'Lost connection',
'is dead or not enabled',
'Error while sending',
'decryption failed or bad record mac',
'server closed the connection unexpectedly',
'SSL connection has been closed unexpectedly',
'Error writing data to the connection',
'Resource deadlock avoided',
'failed with errno',
'child connection forced to terminate due to client_idle_limit',
'query_wait_timeout',
'reset by peer',
'Physical connection is not usable',
'TCP Provider: Error code 0x68',
'ORA-03114',
'Packets out of order. Expected',
'Adaptive Server connection failed',
'Communication link failure',
'connection is no longer usable',
'Login timeout expired',
'SQLSTATE[HY000] [2002] Connection refused',
'running with the --read-only option so it cannot execute this statement',
'The connection is broken and recovery is not possible. The connection is marked by the client driver as unrecoverable. No attempt was made to restore the connection.',
'SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again',
'SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known',
'SQLSTATE[HY000]: General error: 7 SSL SYSCALL error: EOF detected',
'SQLSTATE[HY000] [2002] Connection timed out',
'SSL: Connection timed out',
'SQLSTATE[HY000]: General error: 1105 The last transaction was aborted due to Seamless Scaling. Please retry.',

 

来源于  tp6  底层的 PDOConnection.php  文件