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DB_common::execute()

DB_common::execute() -- Executes a prepared SQL statment

Synopsis

mixed &execute (resource $stmt [, mixed $data = array()])

Description

Merges the SQL statment you submitted to prepare() with the information in $data and then sends the query to the database.

Parameter

resource $stmt: query handle from prepare()
mixed $data: 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

Throws

Table 33-1. Possible PEAR_Error values

Error code	Error message	Reason	Solution
`DB_ERROR_INVALID`	invalid	SQL statment handle is not valid.	Check correct processing of the SQL statment with prepare(). Note that execute() requires a handle to the statement returned by prepare(), not the statment itself.
`DB_ERROR_MISMATCH`	mismatch	Quantity of parameters didn't match quantity of placeholders in the prepared statment.	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 choosen.	Check the DSN in connect().
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.

Note

This function can not be called statically.

Warning

The values passed in $data must be literals. Do not submit SQL functions (for example CURDATE()). SQL functions that should be performed at execution time need to be put in the prepared statement.

Example

Example 33-1. Passing a scalar to execute()

<?php
// Once you have a valid DB object named $db...
$sth = $db->prepare('INSERT INTO numbers (number) VALUES (?)');
if (PEAR::isError($sth)) {
    die($sth->getMessage());
}

$res =& $db->execute($sth, 1);
if (PEAR::isError($res)) {
    die($res->getMessage());
}
?>

Example 33-2. Passing an array to execute()

<?php
// Once you have a valid DB object named $db...
$sth = $db->prepare('INSERT INTO numbers VALUES (?, ?, ?)');

$data = array(1, 'one', 'en');
$db->execute($sth, $data);
?>

See

"Intro - Prepare & Execute", "Intro - autoPrepare & autoExecute", prepare(), executeMultiple()

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PEAR Manual

DB_common::execute()

Synopsis

Description

Parameter

Return value

Throws

Note

Example

See

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