3v4l.org

run code in 300+ PHP versions simultaneously
<?php $conn = new PDO('sqlite::memory:'); $arr = explode(' ' ,"Сегодня тепло и солнечно"); foreach($arr as $i) $quoted[] = '"'.$conn->quote($i).'"'; echo implode("OR", $quoted);

preferences:
25.31 ms | 402 KiB | 5 Q