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 DescriptionProcedural 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
Table 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 |
Note:
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.
Return Values
Returns TRUE on success or FALSE on failure.
ExamplesExample 1. Object oriented style |
<?php
$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'world');
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;
$stmt->execute();
printf("%d Row inserted.\n", $stmt->affected_rows);
$stmt->close();
$mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", $mysqli->affected_rows);
$mysqli->close();
?>
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Example 2. Procedural style |
<?php
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'world');
if (!$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";
$percent = 11.2;
mysqi_stmt_execute($stmt);
printf("%d Row inserted.\n", mysqli_stmt_affected_rows($stmt));
mysqli_stmt_close($stmt);
mysqli_query($link, "DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n", mysqli_affected_rows($link));
mysqli_close($link);
?>
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The above example will output: 1 Row inserted.
1 Row deleted. |
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mysqli_stmt_affected_rows
