Python and JavaScript and General and Performance and PHP Conferences
Python JavaScript General Performance PHP
ArmeniaAustraliaAustriaBelgiumBosnia and HerzegovinaBrazilBulgariaCanadaChileChinaCroatiaCyprusCzech RepublicDenmarkDominican RepublicEgyptEstoniaFinlandFranceGermanyGreeceHungaryIndiaIrelandIsraelItalyJapanKenyaLuxembourgMexicoNetherlandsNew ZealandNorwayOmanPolandPortugalRomaniaRussiaRwandaSerbiaSingaporeSlovakiaSloveniaSouth AfricaSouth KoreaSpainSwedenSwitzerlandTurkeyUkraineUnited Arab EmiratesUnited KingdomUnited StatesVietnam