mysqliresult.php

См. документацию.

<?php
 
namespace Bitrix\Main\DB;
 
class MysqliResult extends Result
{
    protected $resource;

    private $resultFields = null;

    public function __construct($result, Connection $dbConnection = null, \Bitrix\Main\Diag\SqlTrackerQuery $trackerQuery = null)
    {
        parent::__construct($result, $dbConnection, $trackerQuery);
    }

    public function getSelectedRowsCount()
    {
        return $this->resource->num_rows;
    }

    public function getFieldsCount(): int
    {
        return (int) $this->resource->field_count;
    }

    public function getLength(): int
    {
        return (int) array_sum($this->resource->lengths);
    }

    public function hasBigFields(): bool
    {
        if (is_object($this->resource))
        {
            $fields = $this->resource->fetch_fields();
            if ($fields && $this->connection)
            {
                $helper = $this->connection->getSqlHelper();
                foreach ($fields as $field)
                {
                    if ($helper->isBigType($field->type))
                    {
                        return true;
                    }
                }
            }
        }
 
        return false;
    }

    public function getFields()
    {
        if ($this->resultFields == null)
        {
            $this->resultFields = array();
            if (is_object($this->resource))
            {
                $fields = $this->resource->fetch_fields();
                if ($fields && $this->connection)
                {
                    $helper = $this->connection->getSqlHelper();
                    foreach ($fields as $field)
                    {
                        $this->resultFields[$field->name] = $helper->getFieldByColumnType($field->name ?: '(empty)', $field->type);
                    }
                }
            }
        }
 
        return $this->resultFields;
    }

    protected function fetchRowInternal()
    {
        return $this->resource->fetch_assoc();
    }
}