Documentation PHP

PDOStatement->bindColumn

(PHP 5 >= 5.1.0, PECL pdo:0.1-1.0.3)

PDOStatement->bindColumn — Bind a column to a PHP variable

Description

bool PDOStatement::bindColumn ( mixed $column , mixed &$param [, int $type [, int $maxlen [, mixed $driverdata ]]] )

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.

Note: Since information about the columns is not always available to PDO until the statement is executed, portable applications should call this function after PDOStatement::execute().

Liste de paramètres

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.

maxlen

A hint for pre-allocation.

driverdata

Optional parameter(s) for the driver.

Valeurs de retour

Cette fonction retourne TRUE en cas de succès, FALSE en cas d'échec.

Exemples

Exemple #1 Binding result set output to PHP variables

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.

<?php
function readData($dbh) {
  
$sql 'SELECT name, colour, calories FROM fruit';
  try {
    
$stmt $dbh->prepare($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);
?>

L'exemple ci-dessus va afficher :

apple   red     150
banana  yellow  175
kiwi    green   75
orange  orange  150
mango   red     200
strawberry      red     25



Ceci n'est pas la documentation originale du langage de programmation php, pour y accéder visiter le site www.php.net

Support du web, outils, services, compteurs, scripts, générateurs et autres outils pour les webmasters gratuitement à 100%
Page générée en 0.003089 secondes.