Fungsi PHP mysqli terpengaruh_rows
Contoh - Gaya Berorientasi Objek
Kembalikan jumlah baris yang terpengaruh dari kueri yang berbeda:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
// Perform queries and print out affected rows
$mysqli -> query("SELECT * FROM Persons");
echo "Affected rows: " .
$mysqli -> affected_rows;
$mysqli -> query("DELETE FROM Persons WHERE Age>32");
echo "Affected rows: " .
$mysqli -> affected_rows;
$mysqli -> close();
?>
Lihatlah contoh gaya prosedural di bagian bawah.
Definisi dan Penggunaan
Fungsi terpengaruh_rows / mysqli_affected_rows() mengembalikan jumlah baris yang terpengaruh dalam kueri SELECT, INSERT, UPDATE, REPLACE, atau DELETE sebelumnya.
Sintaksis
Gaya berorientasi objek:
$mysqli -> affected_rows
Gaya prosedural:
mysqli_affected_rows(connection)
Nilai Parameter
Parameter | Description |
---|---|
connection | Required. Specifies the MySQL connection to use |
Detail Teknis
Nilai Kembali: | Jumlah baris yang terpengaruh. -1 menunjukkan bahwa kueri mengembalikan kesalahan |
---|---|
Versi PHP: | 5+ |
Contoh - Gaya prosedural
Kembalikan jumlah baris yang terpengaruh dari kueri yang berbeda:
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
// Perform queries and print out affected rows
mysqli_query($con, "SELECT * FROM Persons");
echo "Affected rows: " . mysqli_affected_rows($con);
mysqli_query($con, "DELETE FROM Persons WHERE Age>32");
echo "Affected rows: " . mysqli_affected_rows($con);
mysqli_close($con);
?>
Referensi PHP MySQLi