MDB_Common::getAssoc()

PEAR Справочное руководство
Пред.		След.

Описание

Fetch the entire result set of a query and return it as an associative array using the first column as the key. The function takes care of doing the query and freeing the results when finished. If the result set contains more than two columns, the value will be an array of the values from column 2 to n. If the result set contains only two columns, the returned value will be a scalar with the value of the second column (unless forced to an array with the $force_array parameter).

Параметр

string $query: the SQL query
array $types: if supplied, the types of the columns in the result set will be set for fetching
array $params: if supplied, prepareQuery()/ executeQuery() will be used with this array as execute parameters
array $param_types: if supplied, the values in $param will automatically set to the passed datatypes
integer $fetchmode: the fetch mode to use
boolean $force_array: used only if the query returns exactly two columns. If TRUE, the values of the returned array will be one-element arrays instead of scalars.
boolean boolean $group: if TRUE, the values of the returned array is wrapped in another array. If the same key value (in the first column) repeats itself, the values will be appended to this array instead of overwriting the existing values.

Возвращаемое значение

array - associative array with results from the query.

Throws

Таблица 34-1. Возможные значения PEAR_Error

Error code	Error message	Reason	Solution
`MDB_ERROR_INVALID`	`NULL`	SQL statment for preparing is not valid.	See the prepareQuery() documentation, if you want to use a SQL statemt using wildcards.
`MDB_ERROR_NEED_MORE_DATA`	`NULL`	To less data for filling the prepared SQL statment.	Check the number of wild cards given in the SQL statment prepareQuery() . Check the count of entries in the array for `$params`. The count of entries have to be equal to the number of wild cards.
`MDB_ERROR_NO_DB_SELECTED`	`NULL`	No database was choosen.	Check the DSN in connect() .
`MDB_ERROR_TRUNCATED`	`NULL`	The result set contains fewer then two columns	Check the SQL query or choose another *get()** function
every other error code		Database specific error	Check the database related section of PHP-Manual to detect the reason for this error. In the most cases a misformed SQL statment. Ie. using LIMIT in a SQL-Statment for an Oracle database.

Заметка

Эта функция не должна вызываться статически.

См. также

query() , limitQuery() , prepareQuery() , executeQuery() , getRow() , getOne() , getCol()

Пред.	Начало	След.
MDB_Common::getAll()	Уровень выше	MDB_Common::getCol()