PDOStatement::bindColumn Bind a column to a PHP variable &reftitle.description; boolPDOStatement::bindColumn mixedcolumn mixedparam inttype PDOStatement::bindColumn arranges to have a particular variable bound to a given column in the result-set from a query. Each call to PDOStatement::fetch or PDOStatement::fetchAll will update all the variables that are bound to columns. Since information about the columns is not always available to PDO until the statement is executed, portable applications should call this function after PDO::execute. &reftitle.parameters; column Number of the column (1-indexed) or name of the column in the result set. If using the column name, be aware that the name should match the case of the column, as returned by the driver. param Name of the PHP variable to which the column will be bound. type Data type of the parameter, specified by the PDO::PARAM_* constants. &reftitle.examples; Binding columns in the result set to PHP variables is an effective way to make the data contained in each row immediately available to your application. The following example demonstrates how PDO allows you to bind and retrieve columns with a variety of options and with intelligent defaults. prepare($sql); $stmt->execute(); /* Bind by column number */ $stmt->bindColumn(1, $name); $stmt->bindColumn(2, $colour); /* Bind by column name */ $stmt->bindColumn('calories', $cals); while ($row = $stmt->fetch(PDO::FETCH_BOUND)) { $data = $name . "\t" . $colour . "\t" . $cals . "\n"; print $data; } } catch (PDOException $e) { print $e->getMessage(); } } readData($dbh); ?> ]]> &example.outputs; &reftitle.seealso; PDOStatement::execute PDOStatement::fetch PDOStatement::fetchAll PDOStatement::fetchColumn