PDOStatement::bindValue
(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 1.0.0)
PDOStatement::bindValue — Binds a value to a parameter
Description
Binds a value to a corresponding named or question mark placeholder in the SQL statement that was used to prepare the statement.
Parameters
-
param -
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.
-
type -
Explicit data type for the parameter using the
PDO::PARAM_*constants.
Return Values
Returns true on success or false on failure.
Examples
Example #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);
/* Names can be prefixed with colons ":" too (optional) */
$sth->bindValue(':colour', $colour, PDO::PARAM_STR);
$sth->execute();
?>
Example #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();
?>
See Also
- 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
