Php/docs/function.db2-fetch-object
db2_fetch_object
(PECL ibm_db2 >= 1.0.0)
db2_fetch_object — Returns an object with properties representing columns in the fetched row
说明
db2_fetch_object
( resource $stmt
[, int $row_number = -1
] ) : object
Returns an object in which each property represents a column returned in the row fetched from a result set.
参数
stmt- A valid
stmtresource containing a result set. row_number- Requests a specific 1-indexed row from the result set. Passing this parameter results in a PHP warning if the result set uses a forward-only cursor.
返回值
Returns an object representing a single row in the result set. The properties of the object map to the names of the columns in the result set.
The IBM DB2, Cloudscape, and Apache Derby database servers typically fold column names to upper-case, so the object properties will reflect that case.
If your SELECT statement calls a scalar function to modify the value of a column, the database servers return the column number as the name of the column in the result set. If you prefer a more descriptive column name and object property, you can use the AS clause to assign a name to the column in the result set.
Returns false if no row was retrieved.
范例
Example #1 A db2_fetch_object() example
The following example issues a SELECT statement with a scalar function, RTRIM, that removes whitespace from the end of the column. Rather than creating an object with the properties "BREED" and "2", we use the AS clause in the SELECT statement to assign the name "name" to the modified column. The database server folds the column names to upper-case, resulting in an object with the properties "BREED" and "NAME".
<?php$conn = db2_connect($database, $user, $password);$sql = "SELECT breed, RTRIM(name) AS name FROM animals WHERE id = ?";if ($conn) { $stmt = db2_prepare($conn, $sql); db2_execute($stmt, array(0)); while ($pet = db2_fetch_object($stmt)) { echo "Come here, {$pet->NAME}, my little {$pet->BREED}!"; } db2_close($conn);}?>
以上例程会输出：
Come here, Pook, my little cat!
参见
- db2_fetch_array() - Returns an array, indexed by column position, representing a row in a result set
- db2_fetch_assoc() - Returns an array, indexed by column name, representing a row in a result set
- db2_fetch_both() - Returns an array, indexed by both column name and position, representing a row in a result set
- db2_fetch_row() - Sets the result set pointer to the next row or requested row
- db2_result() - Returns a single column from a row in the result set
