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改进自增缓存

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原来的方式在step为负数时会报错，并且在没有这个键值对时不会自动创建。现在的方式，避免了这个两个问题。
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zzpuser
2016-08-03 23:21:27 +08:00
committed by GitHub
parent dd1f1d49ab
commit 3c0e97767d
1 changed files with 9 additions and 2 deletions
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11
library/think/cache/driver/Memcached.php vendored
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@@ -115,7 +115,14 @@ class Memcached
*/ */
public function inc($name, $step = 1) public function inc($name, $step = 1)
{ {
return $this->handler->increment($this->options['prefix'] . $name, $step); $oldValue = $this->handler->get($this->options['prefix'] . $name);
$value = $oldValue + $step;
$res = $this->handler->set($this->options['prefix'] . $name, $value);
if (!$res) {
return false;
} else {
return $value;
}
} }
/** /**
@@ -129,7 +136,7 @@ class Memcached
{ {
$oldValue = $this->handler->get($this->options['prefix'] . $name); $oldValue = $this->handler->get($this->options['prefix'] . $name);
$value = $oldValue - $step; $value = $oldValue - $step;
$res = $this->handler->set($this->options['prefix'] . $name, $oldValue - $step); $res = $this->handler->set($this->options['prefix'] . $name, $value);
if (!$res) { if (!$res) {
return false; return false;
} else { } else {