PHP Dokumentation: Pdostatement bindvalue
12. Januar 2010 von werner
PDOStatement->bindValue
(PHP 5 >= 5.1.0, PECL pdo >= 1.0.0)
PDOStatement->bindValue — Binds a value to a parameter
Beschreibung
Binds a value to a corresponding named or question mark placeholder in the SQL statement that was use to prepare the statement.
Parameter-Liste
- parameter
Parameter identifier. For a prepared statement using named placeholders, this will be a parameter name of the form :name. For a prepared statement using question mark placeholders, this will be the 1-indexed position of the parameter.
- value
The value to bind to the parameter.
- data_type
Explicit data type for the parameter using the PDO::PARAM_* constants.
Rückgabewerte
Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.
Beispiele
Beispiel #1 Execute a prepared statement with named placeholders
<?php
/* Execute a prepared statement by binding PHP variables */
$calories = 150;
$colour = 'red';
$sth = $dbh->prepare('SELECT name, colour, calories
FROM fruit
WHERE calories < :calories AND colour = :colour');
$sth->bindValue(':calories', $calories, PDO::PARAM_INT);
$sth->bindValue(':colour', $colour, PDO::PARAM_STR);
$sth->execute();
?>Beispiel #2 Execute a prepared statement with question mark placeholders
<?php
/* Execute a prepared statement by binding PHP variables */
$calories = 150;
$colour = 'red';
$sth = $dbh->prepare('SELECT name, colour, calories
FROM fruit
WHERE calories < ? AND colour = ?');
$sth->bindValue(1, $calories, PDO::PARAM_INT);
$sth->bindValue(2, $colour, PDO::PARAM_STR);
$sth->execute();
?>Siehe auch
- PDO::prepare() – Prepares a statement for execution and returns a statement object
- PDOStatement::execute() – Executes a prepared statement
- PDOStatement::bindParam() – Binds a parameter to the specified variable name
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