mysqli::autocommit

mysqli 클래스

(PHP 5, PHP 7, PHP 8)

mysqli::autocommit -- mysqli_autocommit — 데이터베이스 수정 자동 커밋을 켜거나 끕니다.


설명

객체 지향 스타일

public mysqli::autocommit(bool $enable): bool

절차적 스타일

mysqli_autocommit(mysqli $mysql, bool $enable): bool

데이터베이스 연결 쿼리에서 자동 커밋 모드를 켜거나 끕니다.

자동 커밋의 현재 상태를 확인하려면 SQL 명령 SELECT @@autocommit을 사용합니다.


매개변수
mysql
절차적 스타일 전용: mysqli_connect() 또는 mysqli_init()에 의해 반환된 mysqli 객체
enable
자동 커밋을 켤지 여부입니다.

반환 값

성공하면 true를, 실패하면 false를 반환합니다.


Examples

예제 #1 mysqli::autocommit() 예제

객체 지향 스타일

                  
<?php

/* Tell mysqli to throw an exception if an error occurs */
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

/* The table engine has to support transactions */
$mysqli->query("CREATE TABLE IF NOT EXISTS language (
    Code text NOT NULL,
    Speakers int(11) NOT NULL
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;");

/* Turn autocommit off */
$mysqli->autocommit(false);

$result = $mysqli->query("SELECT @@autocommit");
$row = $result->fetch_row();
printf("Autocommit is %s\n", $row[0]);

try {
    /* Prepare insert statement */
    $stmt = $mysqli->prepare('INSERT INTO language(Code, Speakers) VALUES (?,?)');
    $stmt->bind_param('ss', $language_code, $native_speakers);

    /* Insert some values */
    $language_code = 'DE';
    $native_speakers = 50_123_456;
    $stmt->execute();
    $language_code = 'FR';
    $native_speakers = 40_546_321;
    $stmt->execute();

    /* Commit the data in the database. This doesn't set autocommit=true */
    $mysqli->commit();
    print "Committed 2 rows in the database\n";

    $result = $mysqli->query("SELECT @@autocommit");
    $row = $result->fetch_row();
    printf("Autocommit is %s\n", $row[0]);

    /* Try to insert more values */
    $language_code = 'PL';
    $native_speakers = 30_555_444;
    $stmt->execute();
    $language_code = 'DK';
    $native_speakers = 5_222_444;
    $stmt->execute();

    /* Setting autocommit=true will trigger a commit */
    $mysqli->autocommit(true);

    print "Committed 2 row in the database\n";
} catch (mysqli_sql_exception $exception) {
    $mysqli->rollback();

    throw $exception;
}

절차적 스타일

                  
<?php

/* Tell mysqli to throw an exception if an error occurs */
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

$mysqli = mysqli_connect("localhost", "my_user", "my_password", "world");

/* The table engine has to support transactions */
mysqli_query($mysqli, "CREATE TABLE IF NOT EXISTS language (
    Code text NOT NULL,
    Speakers int(11) NOT NULL
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;");

/* Turn autocommit off */
mysqli_autocommit($mysqli, false);

$result = mysqli_query($mysqli, "SELECT @@autocommit");
$row = mysqli_fetch_row($result);
printf("Autocommit is %s\n", $row[0]);

try {
    /* Prepare insert statement */
    $stmt = mysqli_prepare($mysqli, 'INSERT INTO language(Code, Speakers) VALUES (?,?)');
    mysqli_stmt_bind_param($stmt, 'ss', $language_code, $native_speakers);

    /* Insert some values */
    $language_code = 'DE';
    $native_speakers = 50_123_456;
    mysqli_stmt_execute($stmt);
    $language_code = 'FR';
    $native_speakers = 40_546_321;
    mysqli_stmt_execute($stmt);

    /* Commit the data in the database. This doesn't set autocommit=true */
    mysqli_commit($mysqli);
    print "Committed 2 rows in the database\n";

    $result = mysqli_query($mysqli, "SELECT @@autocommit");
    $row = mysqli_fetch_row($result);
    printf("Autocommit is %s\n", $row[0]);

    /* Try to insert more values */
    $language_code = 'PL';
    $native_speakers = 30_555_444;
    mysqli_stmt_execute($stmt);
    $language_code = 'DK';
    $native_speakers = 5_222_444;
    mysqli_stmt_execute($stmt);

    /* Setting autocommit=true will trigger a commit */
    mysqli_autocommit($mysqli, true);

    print "Committed 2 row in the database\n";
} catch (mysqli_sql_exception $exception) {
    mysqli_rollback($mysqli);

    throw $exception;
}

위의 예는 다음을 출력합니다.

Autocommit is 0
Committed 2 rows in the database
Autocommit is 0
Committed 2 row in the database
Autocommit is 0
Committed 2 rows in the database
Autocommit is 0
Committed 2 row in the database

노트

메모: 이 함수는 비 트랜잭션 테이블 유형(MyISAM 또는 ISAM과 같은)에서는 작동하지 않습니다.


기타

PHP

웹학교

참조