Function.mysqli-stmt-bind-param

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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

Inhaltsverzeichnis

Description

Procedural style:

bool mysqli_stmt_bind_param ( object stmt, string types, mixed var1 [, mixed var2, ...])
</BR >

Object oriented style (method):

class stmt {
</BR >bool bind_param ( array types, mixed var1 [, mixed var2, ...])
</BR >}

mysqli_stmt_bind_param() is used to bind variables for the parameter markers in the SQL statement that was passed to mysql_prepare(). The string types contains one or more characters which specify the types for the corresponding bind variables


<P >Tabelle 1. Type specification chars</P ><THEAD ></THEAD ><TBODY ></TBODY >
CharacterDescription
icorresponding variable has type integer
dcorresponding variable has type double
scorresponding variable has type string
bcorresponding variable is a blob and will be send in packages

Anmerkung: If data size of a variable exceeds max. allowed package size (max_allowed_package), you have to specify b in types and use function.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.


Return values

Gibt bei Erfolg TRUE zurück, im Fehlerfall FALSE.


See also

function.mysqli-stmt-bind-result, function.mysqli-stmt-execute, function.mysqli-stmt-fetch, function.mysqli-prepare, function.mysqli-stmt-send-long-data, function.mysqli-stmt-errno, function.mysqli-stmt-error


Example


Beispiel 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();
?>

Beispiel 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);
?>

The above examples would produce the following output: 

1 Row inserted. 1 Row deleted.
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