Php/docs/function.wincache-ucache-inc
来自菜鸟教程
wincache_ucache_inc
(PECL wincache >= 1.1.0)
wincache_ucache_inc — Increments the value associated with the key
说明
wincache_ucache_inc
( string $key
[, int $inc_by
= 1
[, bool &$success
]] ) : mixed
Increments the value associated with the key
by 1 or as specified
by inc_by
.
参数
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 thekey
should be of typelong
, otherwise the function fails and returnsfalse
. success
- Will be set to
true
on success andfalse
on failure.
返回值
Returns the incremented value on success and false
on failure.
范例
Example #1 Using wincache_ucache_inc()
<?phpwincache_ucache_set('counter', 1);var_dump(wincache_ucache_inc('counter', 2921, $success));var_dump($success);?>
以上例程会输出:
int(2922) bool(true)
参见
- wincache_ucache_dec() - Decrements the value associated with the key
- wincache_ucache_cas() - Compares the variable with old value and assigns new value to it