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# clear_all_cache()

clear_all_cache() -- clears the entire template cache

## Description

void clear_all_cache ( [int expire_time])

As an optional parameter, you can supply a minimum age in seconds the cache files must be before they will get cleared.

Example 13-1. clear_all_cache
`<?php // clear the entire cache $smarty->clear_all_cache(); // clears all files over one hour old $smarty->clear_all_cache(3600); ?>`

See also `clear_cache()`, `is_cached()` and the caching page.

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