(PECL wincache >= 1.1.0)
wincache_ucache_inc — Increments the value associated with the key
   Increments the value associated with the key by 1 or as specified 
   by inc_by.
  
key
       The key that was used to store the variable in the cache. 
       key is case sensitive.
      
inc_by
       The value by which the variable associated with the key will get incremented. 
       If the argument is a floating point number it will be truncated to nearest integer. The variable 
       associated with the key should be of type long, otherwise 
       the function fails and returns false.
      
success
   Returns the incremented value on success and false on failure.
  
示例 #1 Using wincache_ucache_inc()
<?php
wincache_ucache_set('counter', 1);
var_dump(wincache_ucache_inc('counter', 2921, $success));
var_dump($success);
?>以上示例会输出:
int(2922) bool(true)
