函数名称:wincache_ucache_meminfo()
适用版本:PHP 5.2.0及以上版本
函数说明:wincache_ucache_meminfo()函数用于获取Wincache用户缓存的内存信息。
语法:array wincache_ucache_meminfo([bool $summary = false])
参数:
- $summary(可选):布尔值,用于指定是否返回摘要信息。默认为false,表示返回详细信息。
返回值:
如果$summary参数为false,则返回一个包含以下键值的关联数组:
- total_cache_uptime:缓存运行时间(秒)
- fragmentation_rate:碎片率(百分比)
- total_memory_allocated:已分配的总内存(字节)
- memory_in_use:正在使用的内存(字节)
- memory_free:空闲内存(字节)
- num_cached_scripts:缓存的脚本数量
- num_cached_keys:缓存的键数量
- max_cached_keys:最大缓存键数
- num_misses:未命中次数
- num_hits:命中次数
- num_user_cache_entries:用户缓存条目数
- user_cache_total_memory:用户缓存总内存(字节)
- user_cache_free_memory:用户缓存空闲内存(字节)
- user_cache_entries:用户缓存条目
如果$summary参数为true,则仅返回以下摘要信息的关联数组:
- total_memory_allocated
- memory_in_use
- memory_free
- num_cached_scripts
- num_cached_keys
- max_cached_keys
- num_misses
- num_hits
- num_user_cache_entries
- user_cache_total_memory
- user_cache_free_memory
示例:
$memInfo = wincache_ucache_meminfo();
echo "Total Memory Allocated: " . $memInfo['total_memory_allocated'] . " bytes\n";
echo "Memory In Use: " . $memInfo['memory_in_use'] . " bytes\n";
echo "Memory Free: " . $memInfo['memory_free'] . " bytes\n";
echo "Number of Cached Scripts: " . $memInfo['num_cached_scripts'] . "\n";
echo "Number of Cached Keys: " . $memInfo['num_cached_keys'] . "\n";
echo "Maximum Cached Keys: " . $memInfo['max_cached_keys'] . "\n";
echo "Number of Misses: " . $memInfo['num_misses'] . "\n";
echo "Number of Hits: " . $memInfo['num_hits'] . "\n";
echo "Number of User Cache Entries: " . $memInfo['num_user_cache_entries'] . "\n";
echo "User Cache Total Memory: " . $memInfo['user_cache_total_memory'] . " bytes\n";
echo "User Cache Free Memory: " . $memInfo['user_cache_free_memory'] . " bytes\n";
echo "User Cache Entries: " . $memInfo['user_cache_entries'] . "\n";
注意:以上示例仅适用于已安装Wincache扩展的环境,并且Wincache功能已启用。