How to Clear APC Cache Entries Effectively: A Comprehensive Guide

Clearing APC Cache Entries Comprehensively

When deploying a new website version, it is essential to clear all cached entries to ensure data integrity. While APC provides a convenient interface to clear opcode caches, it lacks dedicated buttons for clearing user, system, and per-directory entries.

Command-Line Solution

Fortunately, the PHP apc_clear_cache function offers a simple and effective way to purge all cache entries.

apc_clear_cache();

This command will clear the system cache, while the following syntax will clear the user cache:

apc_clear_cache('user');

Extended Options

The apc_clear_cache function also supports additional parameters to specify specific cache types:

• apc_clear_cache('user', 'opcode'): Clears user opcode cache
• apc_clear_cache('sys', 'opcode'): Clears system opcode cache
• apc_clear_cache('user', 'user'): Clears user data cache
• apc_clear_cache('sys', 'user'): Clears system data cache

By utilizing the apc_clear_cache function, you can efficiently manage APC cache entries via the command line or within PHP scripts, ensuring a clean cache and optimal performance for your website.

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