我需要删除一个包含一些特殊密钥的密钥(在我的情况下是方括号):
我做了以下操作,但它不起作用:
$this->redis;
$keys = $this->redis->keys("*");
foreach ($keys as $key) {
// keys are in the following format:
// vir3_data_cache[zones_cdc_shifting_series_2013_5][1]
$this->redis->del($key);
// no key was deleted
}
我也试图引用关键,但没有成功:
$this->redis;
$keys = $this->redis->keys("*");
foreach ($keys as $key) {
// keys are in the following format:
// vir3_data_cache[zones_cdc_shifting_series_2013_5][1]
$quotedKey = addslashes(addslashes($key));
$this->redis->del($quotedKey);
// no key was deleted
}
已解决。这个问题与predis在执行任何操作之前在每个键的开头(在我的例子中是"vir3_data_cache")自动插入一个配置的前缀有关。但是keys("*")
命令并没有从密钥中去掉前缀。
因此,为了使我的代码正常工作,我需要做以下操作:
$prefix = $this->redis->getOptions()->__get('prefix')->getPrefix();
$keys = $this->redis->keys("*");
$removed = 0;
foreach ($keys as $key) {
if (substr($key, 0, strlen($prefix)) == $prefix) {
$key = substr($key, strlen($prefix));
}
}
使用phpredis
时,可以通过这种方式获取前缀并删除密钥模式:
<?php
...
$prefix = $redisClient->getOption(Redis::OPT_PREFIX);
$redisClient->delete(array_map(
function ($key) use ($prefix) {
return str_replace($prefix, '', $key);
}, $redisClient->keys('*'))
);