What You'll LearnUnderstand fundamental time concepts: Grasp the distinctions between UTC, GMT, and Unix timestamps, and learn about the importance of ISO 8601 for consistent date and time representation.Master PHP's Modern Date and Time API: Dive deep into the core OOP classes, including DateTimeImmutable, DateTime, DateTimeZone, DateInterval, and DatePeriod, understanding their roles and benefits.Embrace Immutability for Safer Code: Discover why DateTimeImmutable is the preferred choice for reliable and predictable date and time operations, preventing accidental state changes.Work Confidently with Time Zones: Learn how to correctly handle time zones, including the IANA database, UTC offsets, and the common pitfalls of Daylight Saving Time (DST) transitions.Perform Date and Time Calculations: Accurately add, subtract, and compare dates and times using DateInterval and the diff() method.Iterate Through Time Periods: Utilize DatePeriod to generate sequences of dates, perfect for scheduling and recurring events.Format and Parse Dates Like a Pro: Master the format() method and createFromFormat() for both displaying and interpreting date and time strings in various formats.Navigate Database Interactions: Understand how to store and retrieve date and time data in databases, considering different SQL types and time zone implications.Implement Best Practices: Learn crucial strategies like storing dates in UTC, handling user-specific time zones, and keeping your time zone data updated.Avoid Common Pitfalls: Identify and prevent frequent errors related to time zone assumptions, DST, off-by-one calculations, and ambiguous date parsing.Solve Real-World Problems: Explore practical examples and case studies for building event schedulers, calculating ages, generating reports, and more.Explore Third-Party Tools: Get an introduction to popular libraries like Carbon and understand how they can simplify date and time operations.Test Time-Sensitive Logic: Discover effective strategies for testing your date and time code, including mocking time and handling time zone transitions.
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