autocommit()
PHP mysqli autocommit() funksiyasi
Misol - obyektga yo‘naltirilgan uslub
Avtomatik commit qilishni o‘chiring, bir nechta so‘rov bajaring, so‘ng so‘rovlarni commit qiling:
<?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();
}
// Turn autocommit off
$mysqli -> autocommit(FALSE);
// Insert some values
$mysqli -> query("INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Peter','Griffin',35)");
$mysqli -> query("INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");
// Commit transaction
if (!$mysqli -> commit()) {
echo "Commit transaction failed";
exit();
}
$mysqli -> close();
?>
Protsedural uslubdagi misolni sahifa pastida ko‘ring.
Ta’rif va qo‘llanilishi
autocommit() / mysqli_autocommit() funksiyasi ma’lumotlar bazasidagi o‘zgarishlarni avtomatik commit qilishni yoqadi yoki o‘chiradi.
Maslahat: Belgilangan ma’lumotlar bazasi ulanishi uchun joriy tranzaksiyani commit qiladigan commit() funksiyasiga va joriy tranzaksiyani orqaga qaytaradigan (rollback) rollback() funksiyasiga ham qarang.
Sintaksis
Obyektga yo‘naltirilgan uslub:
$mysqli -> autocommit(mode)
Protsedurali uslub:
mysqli_autocommit(connection, mode)
Parametr qiymatlari
| Parametr | Tavsif |
|---|---|
| connection | Majburiy. Foydalaniladigan MySQL ulanishini belgilaydi |
| mode | Majburiy. FALSE avtomatik commit’ni o‘chiradi. TRUE avtomatik commit’ni yoqadi (va kutib turgan barcha so‘rovlarni commit qiladi) |
Texnik tafsilotlar
| Qaytariladigan qiymat: | Muvaffaqiyatli bo‘lsa TRUE. Muvaffaqiyatsiz bo‘lsa FALSE |
|---|---|
| PHP versiyasi: | 5+ |
Misol - protsedural uslub
Avtomatik commit qilishni o‘chiring, bir nechta so‘rov bajaring, so‘ng so‘rovlarni commit qiling:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit;
}
// Turn autocommit off
mysqli_autocommit($con,FALSE);
// Insert some values
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Peter','Griffin',35)");
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");
// Commit transaction
if (!$mysqli_commit($con)) {
echo "Commit transaction failed";
exit();
}
// Close connection
mysqli_close($con);
?>
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