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    mysqli::init

    mysqli_init

    (PHP 5, PHP 7, PHP 8)

    mysqli::init -- mysqli_init — 初始化 MySQLi 并返回用于 mysqli_real_connect() 的对象

    说明

    面向对象风格

    public mysqli::init(): ?bool

    过程化风格

    mysqli_init(): mysqli|false

    分配或者初始化适合 mysqli_options() 和 mysqli_real_connect() 的 MYSQL 对象。

    注意:

    在调用 mysqli_real_connect() 之前，对其它 mysqli 函数（mysqli_options() 和 mysqli_ssl_set() 除外）的后续调用都会失败。

    参数

    此函数没有参数。

    返回值

    mysqli::init() 成功时返回 null， 或者在失败时返回 false。mysqli_init() 成功时返回对象， 或者在失败时返回 false。

    更新日志

    版本 说明
    8.1.0 弃用面向对象风格的 mysqli::init() 方法。用 parent::__construct() 替换对 parent::init() 的调用。

    示例

    参阅 mysqli_real_connect()。

    参见

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    User Contributed Notes 2 notes

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    1
    Kam.Dab
    1 year ago
    I wrote support ssl mysqli you don't need change anymore mysqli connect exchange to your own mysqli . Overwrite __construct mysqli with support ssl can be like that:
    <?php class myssl_mysqli extends \mysqli {
            public function     __construct($db_host, $db_user, $db_pass, $db_name, $port, $persistent = true, $ssl = false, $certpublic = "") {
                if(    $ssl) {
                parent::init();
                        parent::options(MYSQLI_OPT_SSL_VERIFY_SERVER_CERT, false);
                parent::ssl_set(NULL, NULL, $certpublic, NULL, NULL);
                    parent::real_connect(($persistent ? 'p:' : '') . $db_host, $db_user, $db_pass, $db_name, $port, '', MYSQLI_CLIENT_SSL | MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT );
                } else {
                         parent::__construct($db_host, $db_user, $db_pass, $db_name, $port);
                }
    }
    $db = new myssl_mysqli('localhost','user', 'pass','db', '3306', true, true, '/home/mypublicowncert.pem');
    ?>
    in this example i off the verificate cert by authority ssl, due it own cery created
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    0
    evgen at sysmasters dot net
    2 years ago
    Correct way to connect db

    <?php

    mysqli_report    (MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
    $mysqli = new mysqli("127.0.0.1", "db_user", "db_pass", "db_name",3306);

    $result = $mysqli->query("SELECT somefield1, somefield2 FROM sometable ORDER BY ID LIMIT 3");

    /* Close the connection as soon as it becomes unnecessary */
    $mysqli->close();

    foreach (    $result as $row) {
            /* Processing data received from the database */
    echo var_dump ($row);
    }
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