(PECL maxdb >= 1.0)
Performs a query on the database
mixed maxdb_query ( resource $link, string $query [, int $resultmode ] )
Procedural style
Object oriented style
mixed maxdb::query ( string
$query
) The maxdb_query() function is used to simplify the act of performing a query against the database represented by the link
parameter.
Returns:
Returns TRUE
on success or FALSE
on failure. For SELECT, SHOW, DESCRIBE or EXPLAIN maxdb_query() will return a result resource.
Examples:
Object oriented style
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | <?php $maxdb = new maxdb( "localhost" , "MONA" , "RED" , "DEMODB" ); /* check connection */ if (maxdb_connect_errno()) { printf( "Connect failed: %s\n" , maxdb_connect_error()); exit (); } /* Create table doesn't return a resultset */ if ( $maxdb ->query( "CREATE TABLE temp.mycity LIKE hotel.city" ) === TRUE) { printf( "Table mycity successfully created.\n" ); } /* Select queries return a resultset */ if ( $result = $maxdb ->query( "SELECT name FROM hotel.city" )) { printf( "Select returned %d rows.\n" , $result ->num_rows); /* free result set */ $result ->close(); } /* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */ if ( $result = $maxdb ->query( "SELECT * FROM hotel.city" , MAXDB_USE_RESULT)) { $result ->close(); } $maxdb ->close(); ?> |
Procedural style
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | <?php $link = maxdb_connect( "localhost" , "MONA" , "RED" , "DEMODB" ); /* check connection */ if (maxdb_connect_errno()) { printf( "Connect failed: %s\n" , maxdb_connect_error()); exit (); } /* Create table doesn't return a resultset */ if (maxdb_query( $link , "CREATE TABLE temp.mycity LIKE hotel.city" ) === TRUE) { printf( "Table mycity successfully created.\n" ); } /* Select queries return a resultset */ if ( $result = maxdb_query( $link , "SELECT name FROM hotel.city" )) { printf( "Select returned %d rows.\n" , maxdb_num_rows( $result )); /* free result set */ maxdb_free_result( $result ); } /* If we have to retrieve large amount of data we use MAXDB_USE_RESULT */ if ( $result = maxdb_query( $link , "SELECT * FROM hotel.city" , MAXDB_USE_RESULT)) { maxdb_free_result( $result ); } maxdb_close( $link ); ?> |
See also:
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