(PECL apc >= 3.0.0)
apc_store — Cache a variable in the data store
Cache a variable in the data store.
Note: Unlike many other mechanisms in PHP, variables stored using apc_store() will persist between requests (until the value is removed from the cache).
key
       Store the variable using this name. keys are
       cache-unique, so storing a second value with the same
       key will overwrite the original value.
      
varThe variable to store
ttl
       Time To Live; store var in the cache for
       ttl seconds. After the
       ttl has passed, the stored variable will be
       expunged from the cache (on the next request). If no ttl
       is supplied (or if the ttl is
       0), the value will persist until it is removed from
       the cache manually, or otherwise fails to exist in the cache (clear,
       restart, etc.).
      
valuesNames in key, variables in value.
   Returns TRUE on success or FALSE on failure.
   Second syntax returns array with error keys.
  
Example #1 A apc_store() example
<?php
$bar = 'BAR';
apc_store('foo', $bar);
var_dump(apc_fetch('foo'));
?>
The above example will output:
string(3) "BAR"