mysqli_stmt_bind_param
(PHP 5)
mysqli_stmt_bind_param
(no version information, might be only in CVS)
stmt->bind_param -- Binds variables to a prepared statement as parameters
Description
Procedural style:
bool
mysqli_stmt_bind_param ( mysqli_stmt stmt, string types, mixed &var1 [, mixed &...] )
Object oriented style (method):
class
mysqli_stmt {
bool
bind_param ( string types, mixed &var1 [, mixed &...] )
}
mysqli_stmt_bind_param() is used to bind variables for the parameter markers in the SQL statement that was passed to mysqli_prepare(). The string types contains one or more characters which specify the types for the corresponding bind variables
Tabella 1. Type specification chars
| Character | Description |
|---|
| i | corresponding variable has type integer |
| d | corresponding variable has type double |
| s | corresponding variable has type string |
| b | corresponding variable is a blob and will be send in packages |
Nota: If data size of a variable exceeds max. allowed package size (max_allowed_package), you have to specify b in types and use mysqli_stmt_send_long_data() to send the data in packages.
The number of variables and length of string types must match the parameters in the statement.
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Esempi
Esempio 1. Object oriented style <?php
$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$stmt = $mysqli->prepare("INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
$stmt->bind_param('sssd', $code, $language, $official, $percent);
$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;
/* execute prepared statement */
$stmt->execute();
printf("%d Row inserted.\n", $stmt->affected_rows);
/* close statement and connection */
$stmt->close();
/* Clean up table CountryLanguage */
$mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", $mysqli->affected_rows);
/* close connection */
$mysqli->close();
?> |
|
Esempio 2. Procedural style <?php
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');
/* check connection */
if (!$link) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$stmt = mysqli_prepare($link, "INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt, 'sssd', $code, $language, $official, $percent);
$code = 'DEU';
$language = 'Bavarian';
$official = "F";
$percent = 11.2;
/* execute prepared statement */
mysqi_stmt_execute($stmt);
printf("%d Row inserted.\n", mysqli_stmt_affected_rows($stmt));
/* close statement and connection */
mysqli_stmt_close($stmt);
/* Clean up table CountryLanguage */
mysqli_query($link, "DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", mysqli_affected_rows($link));
/* close connection */
mysqli_close($link);
?> |
|
Il precedente esempio visualizzerà:
1 Row inserted.
1 Row deleted. |