# Introduction call with Tamas Erdelyi (PHPFixer)

> A quick, friendly call to go over your PHP issues and see how PHPFixer can help. Whether it’s bugs, legacy code, performance or just making things cleaner, we'll walk through your situation and look at practical solutions. Feel free to bring any links or code examples if you have them.

- Host: Tamas Erdelyi (PHPFixer)
- Duration: 30 min
- Location: Google Meet, Zoom Video, Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/phpfixer/introduction
- Event type id: 1359778

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=1359778&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 1359778,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.
- `location` is optional; without it the booking uses the event’s first location.