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                             ## randomKey



##### *Description*

Returns a random key.

返回一個隨機的KEY。

##### *Parameters*

None.

##### *Return value*

*STRING*: an existing key in redis.

STRING：一個存在于REDIS中的KEY

##### *Example*

```
<pre class="calibre9">$key = $redis->randomKey();
$surprise = $redis->get($key);  // who knows what's in there.
```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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