Arhey-

function is(){
  foreach(func_get_args() as $v){
    if(!is_null($v)){
      return $v;
    }
  }
}

$value = is(null,null,false,true,1);

Arhey-

//-------------------- [ ++multiple hack ] --------------------
if (isset($_FILES["PROPERTY_FILE_45_"])) {
    $_REQUEST["PROPERTY"][45] = [];
    for ($i = count($_FILES["PROPERTY_FILE_45_"]['tmp_name']) - 1; $i >= 0; $i--) {
        $_FILES["PROPERTY_FILE_45_" . $i] = [];
        $_REQUEST["PROPERTY"][45][$i] = '';
        foreach ($_FILES["PROPERTY_FILE_45_"] as $key => $arr) {
            $_FILES["PROPERTY_FILE_45_" . $i][$key] = $arr[$i];
        }
    }

Arhey-

AddEventHandler('main', 'OnEpilog', '_Check404Error', 1);  
function _Check404Error(){
    if(defined('ERROR_404') && ERROR_404=='Y' || CHTTP::GetLastStatus() == "404 Not Found"){
        GLOBAL $APPLICATION;
        $APPLICATION->RestartBuffer();
        require $_SERVER['DOCUMENT_ROOT'].SITE_TEMPLATE_PATH.'/header.php';
        require $_SERVER['DOCUMENT_ROOT'].'/404.php';
        require $_SERVER['DOCUMENT_ROOT'].SITE_TEMPLATE_PATH.'/footer.php';
    }
}

Arhey-

/*
    http://stackoverflow.com/questions/14973317/understanding-bootstraps-clearfix-function
*/

.clearfix {
  *zoom: 1;
  &:before,
  &:after {
    display: table;
    content: "";

Arhey-

$._data(document, "events").click.forEach(function(e,i){
	console.log(i, e.selector)
})

Arhey-

<?
if(strlen($arItem["ACTIVE_FROM"])>0)
    $arFields["DISPLAY_ACTIVE_FROM"] = CIBlockFormatProperties::DateFormat(
        $arParams["ACTIVE_DATE_FORMAT"], // j F Y
        MakeTimeStamp($arFields["ACTIVE_FROM"], // 16.12.2014 17:00:00
        CSite::GetDateFormat())
    );
else
    $arFields["DISPLAY_ACTIVE_FROM"] = "";

Arhey-

var y = window.pageYOffset; // read only
// var y = window.pageYOffset || document.documentElement.scrollTop; // for IE<9

Arhey-

.bx-core-waitwindow:before {
    content: " ";
    background: url('/bitrix/templates/empty/css/../img/icons.png') -186px -284px;
    position: absolute;
    top: -12px;
    left: -10px;
    width: 64px;
    height: 64px;
    -webkit-animation: infinite-spinning 2s linear infinite;
    -moz-animation: infinite-spinning 2s linear infinite;

Arhey-

function Get() {
    var these = this;

    location.search && location.search.substr(1).split('&').forEach(function (str) {
        var para = str.split("=");

        these[para[0]] = para[1];
    });

    Object.defineProperty(this, 'toString', {