Add Dutch PHP Conference for php

[confs-tech-bot]

Conference information

Website: https://phpconference.nl
CFP: https://phpconference.nl/speakers/cfp
Twitter: https://twitter.com/@dpcon
Mastodon: @[email protected]
Github: @tonivdv

// php

{
  "name": "Dutch PHP Conference",
  "url": "https://phpconference.nl",
  "startDate": "2025-03-18",
  "endDate": "2025-03-21",
  "city": "Amsterdam",
  "country": "Netherlands",
  "online": false,
  "locales": "EN",
  "offersSignLanguageOrCC": true,
  "cocUrl": "https://phpconference.nl/speakers/cfp/",
  "cfpUrl": "https://phpconference.nl/speakers/cfp",
  "cfpEndDate": "2024-12-17",
  "twitter": "@dpcon",
  "mastodon": "@[email protected]"
}

[cgrail]

Thanks a lot for your Pull Request. The conference you've added will be available soon on our website: https://confs.tech