How can collisions be avoided when caching variables in PHP?

To avoid collisions when caching variables in PHP, one approach is to use a unique prefix for each cached variable. This way, even if variables with the same name are cached, they will not overwrite each other. By appending a unique identifier to each variable name before caching it, collisions can be prevented. 

// Unique prefix for cached variables
$prefix = 'my_unique_prefix_';

// Variable to be cached
$data = 'Some data to be cached';

// Generate a unique key for the cached variable
$key = $prefix . 'my_cached_variable';

// Cache the variable with the unique key
$cache->set($key, $data);

Keywords

hashing memcached APCu cache invalidation collision detection

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