This function is changing response of live search contacts inside deal form (Bitrix24 CRM)

crm_deal_function.php

<?php 


// Developer: Bekzod
$crm_api_entity_search = isset($_REQUEST['action']) && $_REQUEST['action'] == 'crm.api.entity.search' ? true : false;
if($crm_api_entity_search)
{
    $request = $_REQUEST;
    if(isset($request['options']['types'][0]) && $request['options']['types'][0] == 'CONTACT')
    {
        changeContactRespone($request);
    }
}

// This function is changing response  of live search contacts inside deal form 
function changeContactRespone($request)
{
    CModule::IncludeModule('crm');
    
    $searchedQuery = $request['searchQuery'];
    $customField = 'UF_CRM_1660812537038';
    
    // get contact ids by phone number
    $arFilter['n1']['%VALUE'] = $searchedQuery;
    $contactRes = CCrmFieldMulti::GetList(array(), [
        'ENTITY_ID' =>'CONTACT',
        'TYPE_ID'=>'PHONE', // email
        'FILTER' => $arFilter
    ]);
    $contactIds = [];
    while ($c = $contactRes->Fetch()){
        $contactIds[] = $c['ELEMENT_ID'];
    }
    
    // get contacts by IDs and Full Name
    $arFilter = [ 
        'CHECK_PERMISSIONS' => 'N',
        'LOGIC' => 'OR',
        'ID' => $contactIds,
        '%FULL_NAME' => trim($searchedQuery),
    ];
    
    $res = CCrmContact::getList([$customField => 'ASC'],$arFilter,['ID','NAME','FULL_NAME',$customField]);
    $contactIds = [];
    while($arRes = $res->Fetch()){
        $contactIds[] = $arRes['ID'];
        $arContacts[$arRes['ID']] = $arRes;
    }
    
    // I tried to put this to above query "LOGIC OR" but it did not work! 
    // get contacts by custom input field
    $arFilter = [
        'CHECK_PERMISSIONS' => 'N',
        $customField => trim($searchedQuery),
    ];
    $res = CCrmContact::getList([$customField => 'ASC'],$arFilter,['ID','NAME','FULL_NAME',$customField]);
    while($arRes = $res->Fetch()){
        $contactIds[] = $arRes['ID'];
        $arContacts[$arRes['ID']] = $arRes;
    }
    
    // get phone numbers all of contacts
    $contactRes = CCrmFieldMulti::GetList(array(), [
        'ENTITY_ID' =>'CONTACT',
        'ELEMENT_ID'=> $contactIds,
    ]);
    while ($c = $contactRes->Fetch()){
        $phones[$c['ELEMENT_ID']] = $c['VALUE'];
    }
    
    $items = [];
    
    // prepare items
    foreach($arContacts as $item)
    {
        $items[] =
        [
            'id' => $item['ID'],
            'type' => 'CONTACT',
            'title' => $item['NAME'].' - '.($item[$customField]  ? $item[$customField] : 'unknown'),
            'module' => 'crm',
            'subTitle' => '',
            'actions' => [],
            'links' => ['show' => "/crm/contact/details/{$item['ID']}/"],
            'attributes' =>
            [
                'phone' =>
                [
                    [
                        'type' => 'WORK',
                        'value' => isset($phones[$item['ID']]) ? $phones[$item['ID']] : NULL,
                    ]
                ],
            ],
        ]; 
    }
    
    $data = [
        'status' => 'success',
        'data' =>
        [
            'items' => $items,
            
            'limits' => []
        ],
        'errors' => []
    ];
    
    if(empty($items)){
       return false; 
    } 
    header('Content-Type: application/json; charset=utf-8');
    die(json_encode($data));
    
}