我需要删除一个包含一些特殊键的键(在我的方括号中):
我执行以下操作,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
}
我也尝试引用密钥,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
}
答案 0 :(得分:2)
<强>解决即可。问题与这样一个事实有关:在执行任何操作之前,predis会在每个键的开头自动插入一个配置的前缀(在我的情况下&#39; vir3_data_cache&#39;)。但keys("*")
命令不会从密钥中删除前缀。
所以我需要执行以下操作才能使代码正常工作:
$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));
}
}
答案 1 :(得分:0)
使用phpredis
时,您可以获取前缀并删除键的模式:
<?php
...
$prefix = $redisClient->getOption(Redis::OPT_PREFIX);
$redisClient->delete(array_map(
function ($key) use ($prefix) {
return str_replace($prefix, '', $key);
}, $redisClient->keys('*'))
);