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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