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    <h3>Editing: MySqlConnector.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Database\Connectors;

use PDO;

class MySqlConnector extends Connector implements ConnectorInterface
{
    /**
     * Establish a database connection.
     *
     * @param  array  $config
     * @return \PDO
     */
    public function connect(array $config)
    {
        $dsn = $this-&gt;getDsn($config);

        $options = $this-&gt;getOptions($config);

        // We need to grab the PDO options that should be used while making the brand
        // new connection instance. The PDO options control various aspects of the
        // connection's behavior, and some might be specified by the developers.
        $connection = $this-&gt;createConnection($dsn, $config, $options);

        if (! empty($config['database'])) {
            $connection-&gt;exec(&quot;use `{$config['database']}`;&quot;);
        }

        $this-&gt;configureIsolationLevel($connection, $config);

        $this-&gt;configureEncoding($connection, $config);

        // Next, we will check to see if a timezone has been specified in this config
        // and if it has we will issue a statement to modify the timezone with the
        // database. Setting this DB timezone is an optional configuration item.
        $this-&gt;configureTimezone($connection, $config);

        $this-&gt;setModes($connection, $config);

        return $connection;
    }

    /**
     * Set the connection transaction isolation level.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return void
     */
    protected function configureIsolationLevel($connection, array $config)
    {
        if (! isset($config['isolation_level'])) {
            return;
        }

        $connection-&gt;prepare(
            &quot;SET SESSION TRANSACTION ISOLATION LEVEL {$config['isolation_level']}&quot;
        )-&gt;execute();
    }

    /**
     * Set the connection character set and collation.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return void|\PDO
     */
    protected function configureEncoding($connection, array $config)
    {
        if (! isset($config['charset'])) {
            return $connection;
        }

        $connection-&gt;prepare(
            &quot;set names '{$config['charset']}'&quot;.$this-&gt;getCollation($config)
        )-&gt;execute();
    }

    /**
     * Get the collation for the configuration.
     *
     * @param  array  $config
     * @return string
     */
    protected function getCollation(array $config)
    {
        return isset($config['collation']) ? &quot; collate '{$config['collation']}'&quot; : '';
    }

    /**
     * Set the timezone on the connection.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return void
     */
    protected function configureTimezone($connection, array $config)
    {
        if (isset($config['timezone'])) {
            $connection-&gt;prepare('set time_zone=&quot;'.$config['timezone'].'&quot;')-&gt;execute();
        }
    }

    /**
     * Create a DSN string from a configuration.
     *
     * Chooses socket or host/port based on the 'unix_socket' config value.
     *
     * @param  array  $config
     * @return string
     */
    protected function getDsn(array $config)
    {
        return $this-&gt;hasSocket($config)
                            ? $this-&gt;getSocketDsn($config)
                            : $this-&gt;getHostDsn($config);
    }

    /**
     * Determine if the given configuration array has a UNIX socket value.
     *
     * @param  array  $config
     * @return bool
     */
    protected function hasSocket(array $config)
    {
        return isset($config['unix_socket']) &amp;&amp; ! empty($config['unix_socket']);
    }

    /**
     * Get the DSN string for a socket configuration.
     *
     * @param  array  $config
     * @return string
     */
    protected function getSocketDsn(array $config)
    {
        return &quot;mysql:unix_socket={$config['unix_socket']};dbname={$config['database']}&quot;;
    }

    /**
     * Get the DSN string for a host / port configuration.
     *
     * @param  array  $config
     * @return string
     */
    protected function getHostDsn(array $config)
    {
        extract($config, EXTR_SKIP);

        return isset($port)
                    ? &quot;mysql:host={$host};port={$port};dbname={$database}&quot;
                    : &quot;mysql:host={$host};dbname={$database}&quot;;
    }

    /**
     * Set the modes for the connection.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return void
     */
    protected function setModes(PDO $connection, array $config)
    {
        if (isset($config['modes'])) {
            $this-&gt;setCustomModes($connection, $config);
        } elseif (isset($config['strict'])) {
            if ($config['strict']) {
                $connection-&gt;prepare($this-&gt;strictMode($connection, $config))-&gt;execute();
            } else {
                $connection-&gt;prepare(&quot;set session sql_mode='NO_ENGINE_SUBSTITUTION'&quot;)-&gt;execute();
            }
        }
    }

    /**
     * Set the custom modes on the connection.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return void
     */
    protected function setCustomModes(PDO $connection, array $config)
    {
        $modes = implode(',', $config['modes']);

        $connection-&gt;prepare(&quot;set session sql_mode='{$modes}'&quot;)-&gt;execute();
    }

    /**
     * Get the query to enable strict mode.
     *
     * @param  \PDO  $connection
     * @param  array  $config
     * @return string
     */
    protected function strictMode(PDO $connection, $config)
    {
        $version = $config['version'] ?? $connection-&gt;getAttribute(PDO::ATTR_SERVER_VERSION);

        if (version_compare($version, '8.0.11') &gt;= 0) {
            return &quot;set session sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION'&quot;;
        }

        return &quot;set session sql_mode='ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'&quot;;
    }
}
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