mysqliconnection.php

См. документацию.

<?php
 
namespace Bitrix\Main\DB;
 
use Bitrix\Main\Diag;

class MysqliConnection extends MysqlCommonConnection
{
    public function __construct(array $configuration)
    {
        parent::__construct($configuration);
 
        $this->configureReportLevel();
    }
 
    /**********************************************************
     * SqlHelper
     **********************************************************/
 
    protected function createSqlHelper()
    {
        return new MysqliSqlHelper($this);
    }
 
    /***********************************************************
     * Connection and disconnection
     ***********************************************************/

    protected function connectInternal()
    {
        if ($this->isConnected)
        {
            return;
        }
 
        $host = $this->host;
        $port = 0;
        if (($pos = strpos($host, ":")) !== false)
        {
            $port = intval(substr($host, $pos + 1));
            $host = substr($host, 0, $pos);
        }
        if ($this->isPersistent())
        {
            $host = "p:" . $host;
        }
 
        $connection = \mysqli_init();
        if (!$connection)
        {
            throw new ConnectionException('Mysql init failed');
        }
 
        if (!empty($this->initCommand))
        {
            if (!$connection->options(MYSQLI_INIT_COMMAND, $this->initCommand))
            {
                throw new ConnectionException('Setting mysql init command failed');
            }
        }
 
        if ($port > 0)
        {
            $success = $connection->real_connect($host, $this->login, $this->password, $this->database, $port);
        }
        else
        {
            $success = $connection->real_connect($host, $this->login, $this->password, $this->database);
        }
 
        if (!$success)
        {
            throw new ConnectionException(
                'Mysql connect error [' . $this->host . ']',
                "({$connection->connect_errno}) {$connection->connect_error}"
            );
        }
 
        $this->resource = $connection;
        $this->isConnected = true;
 
        if (isset($this->configuration['charset']))
        {
            $connection->set_charset($this->configuration['charset']);
        }
 
        // nosql memcached driver
        if (isset($this->configuration['memcache']))
        {
            if (function_exists('mysqlnd_memcache_set'))
            {
                $memcached = \Bitrix\Main\Application::getInstance()->getConnectionPool()->getConnection($this->configuration['memcache']);
                mysqlnd_memcache_set($this->resource, $memcached->getResource());
            }
        }
 
        $this->afterConnected();
    }

    protected function disconnectInternal()
    {
        if ($this->isConnected)
        {
            $this->isConnected = false;
            $this->resource->close();
        }
    }
 
    /*********************************************************
     * Query
     *********************************************************/

    protected function queryInternal($sql, array $binds = null, Diag\SqlTrackerQuery $trackerQuery = null)
    {
        $this->connectInternal();
 
        $trackerQuery?->startQuery($sql, $binds);
 
        $result = $this->resource->query($sql);
 
        $trackerQuery?->finishQuery();
 
        $this->lastQueryResult = $result;
 
        if (!$result)
        {
            throw $this->createQueryException($this->getErrorCode(), $this->getErrorMessage(), $sql);
        }
 
        return $result;
    }

    protected function createResult($result, Diag\SqlTrackerQuery $trackerQuery = null)
    {
        return new MysqliResult($result, $this, $trackerQuery);
    }

    public function getInsertedId()
    {
        return $this->getResource()->insert_id;
    }

    public function getAffectedRowsCount()
    {
        return $this->getResource()->affected_rows;
    }
 
    /*********************************************************
     * Type, version, cache, etc.
     *********************************************************/

    public function getVersion()
    {
        if ($this->version == null)
        {
            $version = trim($this->getResource()->server_info);
 
            preg_match("#[0-9]+\\.[0-9]+\\.[0-9]+#", $version, $ar);
            $this->version = $ar[0];
        }
 
        return [$this->version, null];
    }

    public function getErrorMessage()
    {
        return "({$this->getErrorCode()}) {$this->resource->error}";
    }

    public function getErrorCode()
    {
        return $this->resource->errno;
    }

    public function selectDatabase($database)
    {
        return $this->resource->select_db($database);
    }
 
    protected function configureReportLevel(): void
    {
        // back to default before PHP 8.1
        mysqli_report(MYSQLI_REPORT_OFF);
    }
}