mysqli::begin_transaction

mysqli_begin_transaction

(PHP 5 >= 5.5.0, PHP 7)

mysqli::begin_transaction -- mysqli_begin_transactionStarts a transaction

설명

객체 기반 형식 (method):

public bool mysqli::begin_transaction ([ int $flags [, string $name ]] )

절차식 형식:

bool mysqli_begin_transaction ( mysqli $link [, int $flags [, string $name ]] )

Begins a transaction. Requires MySQL 5.6 and above, and the InnoDB engine (it is enabled by default). For additional details about how MySQL transactions work, see » http://dev.mysql.com/doc/mysql/en/commit.html.

인수

link

순차 형식 전용: mysqli_connect()mysqli_init()가 반환한 연결 식별자.

flags

Valid flags are:

  • MYSQLI_TRANS_START_READ_ONLY: Start the transaction as "START TRANSACTION READ ONLY".

  • MYSQLI_TRANS_START_READ_WRITE: Start the transaction as "START TRANSACTION READ WRITE".

  • MYSQLI_TRANS_START_WITH_CONSISTENT_SNAPSHOT: Start the transaction as "START TRANSACTION WITH CONSISTENT SNAPSHOT".

name

Savepoint name for the transaction.

반환값

성공 시 TRUE를, 실패 시 FALSE를 반환합니다.

예제

Example #1 $mysqli->begin_transaction() example

객체 기반 형식

<?php
$mysqli 
= new mysqli("127.0.0.1""my_user""my_password""sakila");

if (
$mysqli->connect_errno) {
    
printf("Connect failed: %s\n"$mysqli->connect_error);
    exit();
}

$mysqli->begin_transaction(MYSQLI_TRANS_START_READ_ONLY);

$mysqli->query("SELECT first_name, last_name FROM actor");
$mysqli->commit();

$mysqli->close();
?>

절차식 형식

<?php
$link 
mysqli_connect("127.0.0.1""my_user""my_password""sakila");

if (
mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

mysqli_begin_transaction($linkMYSQLI_TRANS_START_READ_ONLY);

mysqli_query($link"SELECT first_name, last_name FROM actor LIMIT 1");
mysqli_commit($link);

mysqli_close($link);
?>

참고

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User Contributed Notes 3 notes

up
2
Luc
4 years ago
For PHP<5.5:

    mysqli_query($db, "START TRANSACTION");
up
1
Ral
2 years ago
If you receive errors like: "This server version doesn't support 'READ WRITE' and 'READ ONLY'. Minimum 5.6.5 is required" with versions of MariaDB that DO support them, this is due to an internal check in mysqli conflicting with a hack in MariaDB to allow replication with oracle mysql.

MariaDB prefixes its server version numbers with "5.5.5-" for example "5.5.5-10.3.7-MariaDB-1:10.3.7+maria~stretch". This is because oracle mysql would interpet the "10" as version 1. Mysql clients aware of MariaDB have been updated to detect and strip this prefix.

However the check for mysqli.begin-transaction sees the 5.5.5 prefix and so fails.

The workaround is to specify a custom version string without the prefix for MariaDB on the command line using the --version option. Then mysqli.begin-transaction functions as expected.
up
-1
VasK@hapir
2 years ago
The above answer from Ral worked for us, Thanks a lot. This is how we implemented the proposed workaround for

Warning: mysqli_begin_transaction(): This server version doesn't support 'READ WRITE' and 'READ ONLY'. Minimum 5.6.5 is required

We appended the following line to /etc/my.cnf and restarted MySQL server

version=10.2.19-MariaDB
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