clesson.php

См. документацию.

<?php
class CLesson
{
    public static function GetList($arOrder = 'will be ignored', $arFilter = array())
    {
        // We must replace '...ID' => '...LESSON_ID', 
        // where '...' is some operation (such as '!', '<=', etc.)
        foreach ($arFilter as $key => $value)
        {
            // If key ends with 'ID'
            if ((mb_strlen($key) >= 2) && (mb_strtoupper(mb_substr($key, -2)) === 'ID'))
            {
                // And prefix before 'ID' doesn't contains letters
                if ( ! preg_match ("/[a-zA-Z_]+/", mb_substr($key, 0, -2)) )
                {
                    $prefix = '';
                    if (mb_strlen($key) > 2)
                        $prefix = mb_substr($key, 0, -2);
 
                    $arFields[$prefix . 'LESSON_ID'] = $arFilter[$key];
                    unset ($arFilter[$key]);
                }
            }
        }
 
        return (CLearnLesson::GetList(array(), $arFilter));
    }
}