DB_common::query() – Sends a query to the database


mixed &query ( string $query , mixed $params = array() )


Runs a query

Can be used instead of prepare() and execute(), if you set the $params parameter and your query uses placeholders. See "Intro - Prepare & Execute" for more information on this mode.


string $query

the SQL query or the statement to prepare

mixed $params

array, string or numeric data to be added to the prepared statement. Quantity of items passed must match quantity of placeholders in the prepared statement: meaning 1 placeholder for non-array parameters or 1 placeholder per array element.

Return value

mixed - a new DB_result object for queries that return results (such as SELECT queries), DB_OK for queries that manipulate data (such as INSERT queries) or a DB_Error object on failure


Possible PEAR_Error values
Error code Error message Reason Solution
DB_ERROR_INVALID invalid SQL statement for preparing is not valid. See the prepare() documentation, if you want to use a SQL statement using placeholders.
DB_ERROR_MISMATCH mismatch Quantity of parameters didn't match quantity of placeholders in the prepared statement. Check that the number of placeholders in the prepare() statement passed to $query equals the count of entries passed to $params.
DB_ERROR_NODBSELECTED no database selected No database was chosen. Check the DSN in connect().
every other error code   Database specific error Check the database related section of the PHP-Manual to detect the reason for this error. In the most cases a misformed SQL statement. I.e. using LIMIT in a SQL-Statement for an Oracle database.


This function can not be called statically.

Checks if the DBMS supports a particular feature (Previous) DEPRECATED: Quotes a string (Next)
Last updated: Sat, 16 Feb 2019 — Download Documentation
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