Title

<?php
require($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_admin.php');

// Protect script
if (!$USER->IsAdmin()) {
    die('Access denied');
}

use Bitrix\Main\Loader;
use Bitrix\Iblock\ElementTable;
use Bitrix\Main\Entity\Query;

Loader::includeModule('iblock');

// Get all products from catalog (IBLOCK_ID = 11)
$rsProducts = CIBlockElement::GetList(
    array('ID' => 'ASC'),
    array('IBLOCK_ID' => 11, 'ACTIVE' => 'Y'),
    false,
    false,
    array('ID', 'NAME', 'IBLOCK_SECTION_ID', 'DETAIL_TEXT', 'PROPERTY_CML2_ARTICLE')
);

$updated = 0;
$processed = 0;

while ($product = $rsProducts->Fetch()) {
    $processed++;
    
    // Get section name
    $sectionName = '';
    if ($product['IBLOCK_SECTION_ID']) {
        $rsSection = CIBlockSection::GetByID($product['IBLOCK_SECTION_ID']);
        if ($arSection = $rsSection->Fetch()) {
            $sectionName = $arSection['NAME'];
        }
    }
    
    // Get price
    $arFilter = array('IBLOCK_ID' => 12, 'ACTIVE' => 'Y');
    $arSelect = array('ID', 'PROPERTY_CML2_LINK');
    $rsOffers = CIBlockElement::GetList(array(), array_merge($arFilter, array('PROPERTY_CML2_LINK' => $product['ID'])), false, false, $arSelect);
    
    $price = '';
    if ($offer = $rsOffers->Fetch()) {
        $rsPrice = CPrice::GetBasePrice($offer['ID']);
        if ($arPrice = $rsPrice->Fetch()) {
            $price = round($arPrice['PRICE']);
        }
    }
    
    // Generate META TITLE
    $metaTitle = generateTitle($product['NAME'], $sectionName, $price);
    
    // Generate META DESCRIPTION
    $metaDescription = generateDescription($product['NAME'], $sectionName, $product['DETAIL_TEXT']);
    
    // Generate META KEYWORDS
    $metaKeywords = generateKeywords($product['NAME'], $sectionName);
    
    // Update in database
    $el = new CIBlockElement;
    $el->Update($product['ID'], array(
        'DESCRIPTION' => json_encode(array(
            'TITLE' => $metaTitle,
            'DESCRIPTION' => $metaDescription,
            'KEYWORDS' => $metaKeywords
        ))
    ));
    
    $updated++;
    
    if ($processed % 100 == 0) {
        echo "Обработано: $processed<br>";
        flush();
    }
}

echo "<h2>Завершено!</h2>";
echo "Всего обработано товаров: $processed<br>";
echo "Обновлено: $updated<br>";

function generateTitle($name, $section, $price) {
    $title = $name;
    if ($section) {
        $title .= " | " . $section;
    }
    if ($price) {
        $title .= " | " . $price . " руб.";
    }
    $title .= " | 24weld.ru";
    
    // Max 60 chars for SEO
    return substr($title, 0, 60);
}

function generateDescription($name, $section, $detailText) {
    $text = substr(strip_tags($detailText), 0, 100);
    if (!$text) {
        $text = "Товар: " . $name;
    }
    
    $desc = $name . ". " . $text . ". Купить на 24weld.ru";
    
    // Max 160 chars for SEO
    return substr($desc, 0, 160);
}

function generateKeywords($name, $section) {
    $keywords = array();
    
    $words = explode(' ', $name);
    foreach ($words as $word) {
        if (strlen($word) > 3) {
            $keywords[] = mb_strtolower($word);
        }
    }
    
    if ($section) {
        $keywords[] = mb_strtolower($section);
    }
    
    $keywords[] = '24weld';
    $keywords[] = 'купить';
    
    return implode(', ', array_slice($keywords, 0, 8));
}

require($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/epilog_admin.php');
?>