Recipes for SEO tasks

This section contains scripts for common SEO tasks

301 Redirect from old URL

Save current URL into property

<?php
CModule::IncludeModule('iblock');
$arSelect = array('ID', 'NAME', 'CODE', 'DETAIL_PAGE_URL', 'ACTIVE');
$arFilter = array('IBLOCK_ID' => 4);
$res = CIBlockElement::GetList(
    array('TIMESTAMP_X' => 'ASC'),
    $arFilter,
    false,
    array('nPageSize' => 1000),
    $arSelect
);
while ($ob = $res->GetNextElement()) {
    $arFields = $ob->GetFields();
    CIBlockElement::SetPropertyValuesEx(
        $arFields['ID'],
        false,
        array('OLD_URL' => $arFields['DETAIL_PAGE_URL'])
    );
}

Release redirect logic in init.php

<?php
AddEventHandler('main', 'OnBeforeProlog', 'MyOnBeforePrologHandler');

function MyOnBeforePrologHandler()
{
    global $APPLICATION;
    $curPage = 'http://example.com' . $APPLICATION->GetCurPage();
    if ($newUrl = getNewUrlFromOld($curPage, 2)) {
        LocalRedirect($newUrl, false, '301 Moved permanently');
    }
    if ($newUrl = getNewUrlFromOld($curPage, 1)) {
        LocalRedirect($newUrl, false, '301 Moved permanently');
    }
}

/**
 * returns a new url from an old stored in IBLOCK element/section property 'OLD_URL'/'UF_OLD_URL'
 * or false if no such element/section in IBLOCK
 * @param string $oldUrl
 * @param integer $iBlockId
 * @param string $elementFieldName (optional)
 * @param string $sectionFieldName (optional)
 * @return mixed
 */
function getNewUrlFromOld($oldUrl, $iBlockId, $elementFieldName = 'OLD_URL', $sectionFieldName = 'UF_OLD_URL')
{
    if (CModule::IncludeModule('iblock')) {
        $elementList = CIBlockElement::GetList(
            array('SORT' => 'ASC'),
            array(
                'IBLOCK_ID' => $iBlockId,
                'PROPERTY_' . $elementFieldName => $oldUrl
            ),
            false,
            false,
            array(
                'DETAIL_PAGE_URL'
            )
        );
        if ($arElement = $elementList->GetNext()) {

            return $arElement['DETAIL_PAGE_URL'];
        }
        $sectionList = CIBlockSection::GetList(
            array('SORT' => 'ASC'),
            array(
                'IBLOCK_ID' => $iBlockId,
                $sectionFieldName => $oldUrl
            ),
            false,
            array(
                'SECTION_PAGE_URL'
            )
        );
        if ($arSection = $sectionList->GetNext()) {

            return $arSection['SECTION_PAGE_URL'];
        }
    }
    return false;
}

Find and fix sections duplicates

For all section codes duplicates concat section code of it’s parent

<?php
CModule::IncludeModule('iblock');

$arFilter = array('IBLOCK_ID' => 4);
$by = 'ID';
$order = 'ASC';
$db_list = CIBlockSection::GetList(array($by => $order), $arFilter, false);
while ($ar_result = $db_list->GetNext()) {
    $arSect[] = $ar_result;
    $arCode[] = $ar_result['CODE'];
}

$arCodes = array_count_values($arCode);

foreach ($arCodes as $key => $arCd) {
    if ($arCd > 1) {
        $arEndCode[] = $key;
    }
}

foreach ($arSect as $arSection) {
    if (in_array($arSection['CODE'], $arEndCode)) {
        $resa = CIBlockSection::GetByID($arSection['IBLOCK_SECTION_ID']);
        if ($ar_resf = $resa->GetNext()) {
            $name = $ar_resf['CODE'];
        }

        $code = $name . '-' . $arSection['CODE'];

        $bs = new CIBlockSection;

        $arFields = array(
            'CODE' => $code,
        );

        $res = $bs->Update($arSection['ID'], $arFields);
    }
}

.htaccess SEO redirects

#remove index.(php|html|htm)
RewriteRule ^(.*)\/index\.(php|html?)$ /$1/ [R=301,NC,L]
RewriteRule ^index\.(php|html?)$ / [R=301,NC,L]

#www. to no www
RewriteCond %{SERVER_PORT}s ^(443(s)|[0-9]+s)$
RewriteRule ^(.*)$ - [env=askapache:%2]
RewriteCond %{HTTP_HOST} ^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http%{ENV:askapache}://%1/$1 [R=301,L]

#add trailing slash
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)(?:\/|\.html?|\.php)$
RewriteRule ^(.*)$ %{REQUEST_URI}/ [R=301,L]

Fix pictures URL changing

<?php

AddEventHandler('iblock', 'OnBeforeIBlockElementUpdate', 'checkImagesSize');

/**
 * Restrict image update if same image size given
 * @param $arFields
 */
function checkImagesSize(&$arFields)
{
    $arImageInfoDetail = \CFile::MakeFileArray($arFields['DETAIL_PICTURE']['old_file']);
    if ($arFields['DETAIL_PICTURE']['size'] == $arImageInfoDetail['size']) {
        unset($arFields['DETAIL_PICTURE']);
    }

    $arImageInfoPreview = \CFile::MakeFileArray($arFields['PREVIEW_PICTURE']['old_file']);
    if ($arFields['PREVIEW_PICTURE']['size'] == $arImageInfoPreview['size']) {
        unset($arFields['PREVIEW_PICTURE']);
    }
}

Change elements code separator from ‘_’ to ‘-‘

<?php
CModule::IncludeModule('iblock');
$arSelect = array('ID', 'NAME', 'CODE');
$arFilter = array('IBLOCK_ID' => 10, 'ACTIVE' => 'Y');
$res = CIBlockElement::GetList(
    array('TIMESTAMP_X' => 'ASC'),
    $arFilter,
    false,
    array('nPageSize' => 1000),
    $arSelect
);
while ($ob = $res->GetNextElement()) {
    $arFields = $ob->GetFields();
    $newCode = str_replace('_', '-', $arFields['CODE']);

    $el = new CIBlockElement;

    $arLoadProductArray = array(
        'MODIFIED_BY' => $USER->GetID(),
        'CODE' => $newCode,
    );

    $res2 = $el->Update($arFields['ID'], $arLoadProductArray);
}

---

Change sections code separator from ‘_’ to ‘-‘

<?php
CModule::IncludeModule("iblock");
$arFilter = array("IBLOCK_ID" => 11);
$db_list = CIBlockSection::GetList(array(), $arFilter, true);
while ($ar_result = $db_list->GetNext()) {
    $newCode = str_replace("_", "-", $ar_result["CODE"]);

    $bs = new CIBlockSection;
    $arFields = array(
        "CODE" => $newCode,
    );

    $res = $bs->Update($ar_result["ID"], $arFields);
}