Popismixed dbx_query ( object link_identifier, string sql_statement [, int flags] )
Sends a query and fetch all results.
The DBX link object returned by dbx_connect()
The compared column
flagsparameter is used to control the amount of information that is returned. It may be any combination of the following constants with the bitwise OR operator (|). The DBX_COLNAMES_* flags override the dbx.colnames_case setting from php.ini.Note that DBX_RESULT_INDEX is always used, regardless of the actual value of
It is always set, that is, the returned object has a data property which is a 2 dimensional array indexed numerically. For example, in the expression data 2 stands for the row (or record) number and 3 stands for the column (or field) number. The first row and column are indexed at 0.
If DBX_RESULT_ASSOC is also specified, the returning object contains the information related to DBX_RESULT_INFO too, even if it was not specified.
It provides info about columns, such as field names and field types.
It effects that the field values can be accessed with the respective column names used as keys to the returned object's data property.
Associated results are actually references to the numerically indexed data, so modifying data causes that data['field_name_for_first_column'] is modified as well.
- DBX_RESULT_UNBUFFERED (PHP 5)
This flag will not create the data property, and the rows property will initially be 0. Use this flag for large datasets, and use dbx_fetch_row() to retrieve the results row by row.
The dbx_fetch_row() function will return rows that are conformant to the flags set with this query. Incidentally, it will also update the rows each time it is called.
- DBX_COLNAMES_UNCHANGED (available from PHP 4.3.0)
The case of the returned column names will not be changed.
- DBX_COLNAMES_UPPERCASE (available from PHP 4.3.0)
The case of the returned column names will be changed to uppercase.
- DBX_COLNAMES_LOWERCASE (available from PHP 4.3.0)
The case of the returned column names will be changed to lowercase.
flagsparameter. This means that only the following combinations are effective:
DBX_RESULT_INDEX | DBX_RESULT_INFO
DBX_RESULT_INDEX | DBX_RESULT_INFO | DBX_RESULT_ASSOC - this is the default, if
flagsis not specified.
dbx_query() returns an object or 1
on success, and 0 on failure. The result object is
returned only if the query given in
produces a result set (i.e. a SELECT query, even if the result set is
object has four or five
properties depending on
It is a valid handle for the connected database, and as such it can be used in module specific functions (if required).
- cols and rows
These contain the number of columns (or fields) and rows (or records) respectively.
- info (optional)
It is returned only if either DBX_RESULT_INFO or DBX_RESULT_ASSOC is specified in the
flagsparameter. It is a 2 dimensional array, that has two named rows (name and type) to retrieve column information.
This property contains the actual resulting data, possibly associated with column names as well depending on
flags. If DBX_RESULT_ASSOC is set, it is possible to use $result->data["field_name"].
Příklad 4. How to handle the returned value
Poznámka: Always refer to the module-specific documentation as well.
Column names for queries on an Oracle database are returned in lowercase.