Memcache vs. Memcached: Which PHP Library Should You Choose?

Distinguishing "Memcache" and "Memcached" in PHP

PHP offers two memcached libraries: memcache and memcached. Understanding their differences helps determine the optimal choice for your application.

Memcache and Memcached:

Memcache is the older library, while memcached is a newer, more robust option.

Differences:

Memcached offers several key advantages over memcache:

• Cas Tokens: Provides cas (compare-and-swap) tokens for enhanced data integrity.
• Read Through Callbacks: Simplifies code with automatic data fetching from external sources.
• getDelayed: Reduces script waiting time by obtaining results from the server incrementally.
• Binary Protocol: Boosts performance by replacing ASCII with a binary protocol for data transfer.
• igbinary: Serialization option for improved speed and efficiency.

Suitability Factors:

Consider the following factors when choosing between memcache and memcached:

• Features: Memcached is recommended if you require the advanced features listed above.
• Stability: Both libraries are generally stable, but memcached has a larger user base.
• Dependency: Memcached requires an external C/C library, so installation may vary depending on your system.
• Framework Support: Check if your preferred frameworks support memcached as some may only integrate with memcache.

Conclusion:

Each memcached library serves specific needs. If enhanced features and improved performance are essential, memcached is the preferred option. Otherwise, memcache remains a reliable alternative with its simplicity and lower setup requirements.

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