PHP mysqli query() Fungsi
Contoh - Gaya Berorientasi Objek
Lakukan kueri terhadap database:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
// Check connection
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
// Perform query
if ($result = $mysqli -> query("SELECT * FROM Persons"))
{
echo "Returned rows are: " . $result -> num_rows;
// Free result set
$result -> free_result();
}
$mysqli -> close();
?>
Lihat contoh gaya prosedural di bawah.
Definisi dan Penggunaan
Fungsi query() / mysqli_query() melakukan query terhadap database.
Sintaksis
Gaya berorientasi objek:
$mysqli -> query(query,
resultmode)
Gaya prosedural:
mysqli_query(connection, query, resultmode)
Nilai Parameter
Parameter | Description |
---|---|
connection | Required. Specifies the MySQL connection to use |
query | Required. Specifies the SQL query string |
resultmode |
Optional. A constant. Can be one of the following:
|
Detail Teknis
Nilai Kembali: | Untuk kueri SELECT, SHOW, DESCRIBE, atau EXPLAIN yang berhasil, ia akan mengembalikan objek mysqli_result. Untuk kueri sukses lainnya, itu akan mengembalikan TRUE. SALAH pada kegagalan |
---|---|
Versi PHP: | 5+ |
Log Perubahan PHP: | PHP 5.3.0 menambahkan kemampuan untuk kueri asinkron |
Contoh - Gaya prosedural
Lakukan kueri terhadap database:
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
// Perform query
if ($result = mysqli_query($con, "SELECT * FROM Persons"))
{
echo "Returned rows are: " . mysqli_num_rows($result);
// Free result set
mysqli_free_result($result);
}
mysqli_close($con);
?>
Referensi PHP MySQLi