mysqli_stmt->insert_id
mysqli_stmt->param_count
MySQLi_STMT
PHP Manual

# mysqli_stmt::num_rows

# mysqli_stmt_num_rows

(PHP 5)

mysqli_stmt::num_rows -- mysqli_stmt_num_rows — Return the number of rows in statements result set

### Opis

Styl obiektowy

mysqli_stmt
int $num_rows;

Styl proceduralny

int mysqli_stmt_num_rows ( mysqli_stmt `$stmt` )

Returns the number of rows in the result set. The use of mysqli_stmt_num_rows() depends on whether or not you used mysqli_stmt_store_result() to buffer the entire result set in the statement handle.

If you use mysqli_stmt_store_result(), mysqli_stmt_num_rows() may be called immediately.

### Parametry

`stmt`

  Tylko styl proceduralny: Identyfikator stanu zwrócony przez mysqli_stmt_init().

### Zwracane wartości

An integer representing the number of rows in result set.

### Przykłady

Styl obiektowy

`<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
if ($stmt = $mysqli->prepare($query)) {
/* execute query */
$stmt->execute();
/* store result */
$stmt->store_result();
printf("Number of rows: %d.\n", $stmt->num_rows);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>`

Styl proceduralny

`<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute query */
mysqli_stmt_execute($stmt);
/* store result */
mysqli_stmt_store_result($stmt);
printf("Number of rows: %d.\n", mysqli_stmt_num_rows($stmt));
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>`

Powyższe przykłady wyświetlą:

    Number of rows: 20.

### Zobacz też:

- mysqli_stmt_affected_rows() - Returns the total number of rows changed, deleted, or inserted by the last executed statement
- mysqli_prepare() - Prepare an SQL statement for execution
- mysqli_stmt_store_result() - Transfers a result set from a prepared statement

mysqli_stmt->insert_id
mysqli_stmt->param_count
MySQLi_STMT
PHP Manual