Overview
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Build your PHP skills while solving real-world programming challenges. Learn how to make webpages time-zone sensitive and to build a PHP-driven time zone calculator.
Syllabus
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Introduction
- Welcome
- How to use the exercise files
- History
- UTC and time zone offsets
- Daylight saving time (DST)
- PHP time zone identifiers
- Set default in php.ini
- Set default at runtime
- Understanding Unix time
- PHP procedural functions
- PHP DateTime
- PHP DateTimeZone
- DST transitions
- Create the form
- Add a time zone Selection-Option
- Include the time zone offset
- Improve offset formatting
- Store the time zone selection
- Display the current time
- Convert to user's time zone
- Challenge: Create a maintenance page
- Solution: Create a maintenance page
- Store dates in a database
- List time zones
- Challenge: Use major cities
- Solution: Use major cities
- Sort cities by offset
- More efficient sorting
- Create the form
- Time zone options function
- Convert the time zone
- Create date selectors
- Create minute selector
- Create hour selector
- Process date and time selections
- Next steps
