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Dokumen ini menggunakan Manual laman web PHP Cina Lepaskan
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::simpleCommand — Sends a basic COM_* command
$connection
, int $command
, string $arg
, int $ok_packet
, bool $silent
, bool $ignore_upsert_status
)Sends a basic COM_* command to MySQL.
connection
Mysqlnd connection handle. Do not modify!
command
The COM command to be send.
arg
Optional COM command arguments.
ok_packet
The OK packet type.
silent
Whether mysqlnd may emit errors.
ignore_upsert_status
Whether to ignore UPDATE/INSERT status.
Returns TRUE
on success.
Otherwise, returns FALSE
Example #1 MysqlndUhConnection::simpleCommand() example
<?php
function server_cmd_2_string ( $command ) {
$mapping = array(
MYSQLND_UH_MYSQLND_COM_SLEEP => "MYSQLND_UH_MYSQLND_COM_SLEEP" ,
MYSQLND_UH_MYSQLND_COM_QUIT => "MYSQLND_UH_MYSQLND_COM_QUIT" ,
MYSQLND_UH_MYSQLND_COM_INIT_DB => "MYSQLND_UH_MYSQLND_COM_INIT_DB" ,
MYSQLND_UH_MYSQLND_COM_QUERY => "MYSQLND_UH_MYSQLND_COM_QUERY" ,
MYSQLND_UH_MYSQLND_COM_FIELD_LIST => "MYSQLND_UH_MYSQLND_COM_FIELD_LIST" ,
MYSQLND_UH_MYSQLND_COM_CREATE_DB => "MYSQLND_UH_MYSQLND_COM_CREATE_DB" ,
MYSQLND_UH_MYSQLND_COM_DROP_DB => "MYSQLND_UH_MYSQLND_COM_DROP_DB" ,
MYSQLND_UH_MYSQLND_COM_REFRESH => "MYSQLND_UH_MYSQLND_COM_REFRESH" ,
MYSQLND_UH_MYSQLND_COM_SHUTDOWN => "MYSQLND_UH_MYSQLND_COM_SHUTDOWN" ,
MYSQLND_UH_MYSQLND_COM_STATISTICS => "MYSQLND_UH_MYSQLND_COM_STATISTICS" ,
MYSQLND_UH_MYSQLND_COM_PROCESS_INFO => "MYSQLND_UH_MYSQLND_COM_PROCESS_INFO" ,
MYSQLND_UH_MYSQLND_COM_CONNECT => "MYSQLND_UH_MYSQLND_COM_CONNECT" ,
MYSQLND_UH_MYSQLND_COM_PROCESS_KILL => "MYSQLND_UH_MYSQLND_COM_PROCESS_KILL" ,
MYSQLND_UH_MYSQLND_COM_DEBUG => "MYSQLND_UH_MYSQLND_COM_DEBUG" ,
MYSQLND_UH_MYSQLND_COM_PING => "MYSQLND_UH_MYSQLND_COM_PING" ,
MYSQLND_UH_MYSQLND_COM_TIME => "MYSQLND_UH_MYSQLND_COM_TIME" ,
MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT => "MYSQLND_UH_MYSQLND_COM_DELAYED_INSERT" ,
MYSQLND_UH_MYSQLND_COM_CHANGE_USER => "MYSQLND_UH_MYSQLND_COM_CHANGE_USER" ,
MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP => "MYSQLND_UH_MYSQLND_COM_BINLOG_DUMP" ,
MYSQLND_UH_MYSQLND_COM_TABLE_DUMP => "MYSQLND_UH_MYSQLND_COM_TABLE_DUMP" ,
MYSQLND_UH_MYSQLND_COM_CONNECT_OUT => "MYSQLND_UH_MYSQLND_COM_CONNECT_OUT" ,
MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED => "MYSQLND_UH_MYSQLND_COM_REGISTER_SLAVED" ,
MYSQLND_UH_MYSQLND_COM_STMT_PREPARE => "MYSQLND_UH_MYSQLND_COM_STMT_PREPARE" ,
MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE => "MYSQLND_UH_MYSQLND_COM_STMT_EXECUTE" ,
MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA => "MYSQLND_UH_MYSQLND_COM_STMT_SEND_LONG_DATA" ,
MYSQLND_UH_MYSQLND_COM_STMT_CLOSE => "MYSQLND_UH_MYSQLND_COM_STMT_CLOSE" ,
MYSQLND_UH_MYSQLND_COM_STMT_RESET => "MYSQLND_UH_MYSQLND_COM_STMT_RESET" ,
MYSQLND_UH_MYSQLND_COM_SET_OPTION => "MYSQLND_UH_MYSQLND_COM_SET_OPTION" ,
MYSQLND_UH_MYSQLND_COM_STMT_FETCH => "MYSQLND_UH_MYSQLND_COM_STMT_FETCH" ,
MYSQLND_UH_MYSQLND_COM_DAEMON => "MYSQLND_UH_MYSQLND_COM_DAEMON" ,
MYSQLND_UH_MYSQLND_COM_END => "MYSQLND_UH_MYSQLND_COM_END" ,
);
return (isset( $mapping [ $command ])) ? $mapping [ $command ] : 'unknown' ;
}
function ok_packet_2_string ( $ok_packet ) {
$mapping = array(
MYSQLND_UH_MYSQLND_PROT_GREET_PACKET => "MYSQLND_UH_MYSQLND_PROT_GREET_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET => "MYSQLND_UH_MYSQLND_PROT_AUTH_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_OK_PACKET => "MYSQLND_UH_MYSQLND_PROT_OK_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_EOF_PACKET => "MYSQLND_UH_MYSQLND_PROT_EOF_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_CMD_PACKET => "MYSQLND_UH_MYSQLND_PROT_CMD_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_HEADER_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET => "MYSQLND_UH_MYSQLND_PROT_RSET_FLD_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_ROW_PACKET => "MYSQLND_UH_MYSQLND_PROT_ROW_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_STATS_PACKET => "MYSQLND_UH_MYSQLND_PROT_STATS_PACKET" ,
MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET => "MYSQLND_UH_MYSQLND_PREPARE_RESP_PACKET" ,
MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET => "MYSQLND_UH_MYSQLND_CHG_USER_RESP_PACKET" ,
MYSQLND_UH_MYSQLND_PROT_LAST => "MYSQLND_UH_MYSQLND_PROT_LAST" ,
);
return (isset( $mapping [ $ok_packet ])) ? $mapping [ $ok_packet ] : 'unknown' ;
}
class proxy extends MysqlndUhConnection {
public function simpleCommand ( $conn , $command , $arg , $ok_packet , $silent , $ignore_upsert_status ) {
printf ( "%s(%s)\n" , __METHOD__ , var_export ( func_get_args (), true ));
printf ( "Command '%s'\n" , server_cmd_2_string ( $command ));
printf ( "OK packet '%s'\n" , ok_packet_2_string ( $ok_packet ));
$ret = parent :: simpleCommand ( $conn , $command , $arg , $ok_packet , $silent , $ignore_upsert_status );
printf ( "%s returns %s\n" , __METHOD__ , var_export ( $ret , true ));
return $ret ;
}
}
mysqlnd_uh_set_connection_proxy (new proxy ());
$mysqli = new mysqli ( "localhost" , "root" , "" , "test" );
$mysqli -> query ( "SELECT 1" );
?>
以上例程会输出:
proxy::simpleCommand(array ( 0 => NULL, 1 => 3, 2 => 'SELECT 1', 3 => 13, 4 => false, 5 => false, )) Command 'MYSQLND_UH_MYSQLND_COM_QUERY' OK packet 'MYSQLND_UH_MYSQLND_PROT_LAST' proxy::simpleCommand returns true :)proxy::simpleCommand(array ( 0 => NULL, 1 => 1, 2 => '', 3 => 13, 4 => true, 5 => true, )) Command 'MYSQLND_UH_MYSQLND_COM_QUIT' OK packet 'MYSQLND_UH_MYSQLND_PROT_LAST' proxy::simpleCommand returns true