Documentation PHP

PDOStatement->fetchColumn

(PHP 5 >= 5.1.0, PECL pdo:0.9-1.0.3)

PDOStatement->fetchColumn — Returns a single column from the next row of a result set

Description

string PDOStatement::fetchColumn ([ int $column_number ] )

Returns a single column from the next row of a result set or FALSE if there are no more rows.

Liste de paramètres

column_number

0-indexed number of the column you wish to retrieve from the row. If no value is supplied, PDOStatement::fetchColumn() fetches the first column.

Valeurs de retour

PDOStatement::fetchColumn() returns a single column in the next row of a result set.

Avertissement

There is no way to return another column from the same row if you use PDOStatement::fetchColumn() to retrieve data.

Exemples

Exemple #1 Return first column of the next row

<?php
$sth 
$dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();

/* Fetch the first column from the next row in the result set */
print("Fetch the first column from the next row in the result set:\n");
$result $sth->fetchColumn();
print(
"name = $result\n");

print(
"Fetch the second column from the next row in the result set:\n");
$result $sth->fetchColumn(1);
print(
"colour = $result\n");
?>

L'exemple ci-dessus va afficher :

Fetch the first column from the next row in the result set:
name = lemon
Fetch the second column from the next row in the result set:
colour = red



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

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