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mysqli_stmt->param_count
(PHP 5)
mysqli_stmt->param_count -- mysqli_stmt_param_count — Returns the number of parameter for the given statement
Beschreibung
Object oriented style (property):
mysqli_stmt
int $param_count;
Procedural style:
int mysqli_stmt_param_count
( mysqli_stmt $stmt
)
Returns the number of parameter markers present in the prepared statement.
Parameter-Liste
- stmt
-
Nur bei prozeduralem Aufruf: ein von mysqli_stmt_init() zurückgegebens Statementobjekt.
Rückgabewerte
Returns an integer representing the number of parameters.
Beispiele
PHP Code
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$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if ($stmt = $mysqli->prepare("SELECT Name FROM Country WHERE Name=? OR Code=?")) {
$marker = $stmt->param_count;
printf("Statement has %d markers.\n", $marker);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
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$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
if ($stmt = mysqli_prepare($link, "SELECT Name FROM Country WHERE Name=? OR Code=?")) {
$marker = mysqli_stmt_param_count($stmt);
printf("Statement has %d markers.\n", $marker);
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
Statement has 2 markers.