apcu_inc
apcu_inc
(PECL apcu >= 4.0.0)
apcu_inc - 增加一个存储号码
描述
int apcu_inc ( string $key [, int $step = 1 [, bool &$success ]] )
增加存储的数字。
参数
key
价值的关键在增加。
step
该步骤或增加的价值。
success
(可选)将成功或失败布尔值传递给此引用变量。
返回值
返回key
成功或当FALSE
失败时的值的当前值
例子
Example #1 apcu
_
inc() example
<?php
echo "Let's do something with success", PHP_EOL;
apcu_store('anumber', 42
echo apcu_fetch('anumber'), PHP_EOL;
echo apcu_inc('anumber'), PHP_EOL;
echo apcu_inc('anumber', 10), PHP_EOL;
echo apcu_inc('anumber', 10, $success), PHP_EOL;
var_dump($success
echo "Now, let's fail", PHP_EOL, PHP_EOL;
apcu_store('astring', 'foo'
$ret = apcu_inc('astring', 1, $fail
var_dump($ret
var_dump($fail
?>
上面的例子会输出类似于:
Let's do something with success
42
43
53
63
bool(true)
Now, let's fail
bool(false)
bool(false)