Thinkphp caching Method S () Overview _php instance

The thinkphp F method can be used only for caching simple data types, not for expiration and caching of objects . The S () caching method supports the validity period, also known as the dynamic caching method, using the following example:

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To cache $data data using the data identity
S (' data ', $Data); The front is the cache label, followed by the cached data

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Cache $data data for 3,600 seconds
S (' Data ', $Data, 3600);

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Deleting cached data
S (' data ', NULL); The identity name of the cache when the first parameter

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$cache =s ($cachename);//Set Cache mark
Determine if there is this query cache
if (! $cache) {//$cache is the cached indicator (each query corresponds to a cache that has different caches for different queries)
$cache = $video->where ($map)->order ($order)->limit ($limit)->select ();
foreach ($cache as $key => $value) {
$userlist = $user->where ("id=". $value [' user_id '])->find ();
$cache [$key] ["nickname"]= $userlist [' nickname '];
}
S ($cachename, $cache, 3600); To set the cache lifetime
}
S ($cachename, NULL); Delete Cache

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I hope this article will help you with the PHP program design based on thinkphp framework.