PHP mysqli ping() Fungsi
Contoh - Gaya Berorientasi Objek
Ping koneksi server:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
// Check connection
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
// Check if server is alive
if ($mysqli -> ping()) {
echo "Connection is ok!";
} else {
echo "Error: ".
$mysqli -> error);
}
$mysqli -> close();
?>
Lihatlah contoh gaya prosedural di bagian bawah.
Definisi dan Penggunaan
Fungsi ping() / mysqli_ping() mem-ping koneksi server, untuk memeriksa apakah server hidup. Ia juga mencoba menyambung kembali - jika sambungan terputus.
Sintaksis
Gaya berorientasi objek:
$mysqli -> ping()
Gaya prosedural:
mysqli_ping(connection)
Nilai Parameter
Parameter | Description |
---|---|
connection | Required. Specifies the MySQL connection to use |
Detail Teknis
Nilai Kembali: | BENAR pada kesuksesan. SALAH pada kegagalan |
---|---|
Versi PHP: | 5+ |
Contoh - Gaya prosedural
Ping koneksi server:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
// Check if server is alive
if (mysqli_ping($con)) {
echo "Connection is ok!";
} else {
echo "Error: ". mysqli_error($con);
}
mysqli_close($con);
?>
Referensi PHP MySQLi