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                            獲取隨機字符串(a-z,A-Z,0-9)     

* * * * *
~~~
getRandStr()
~~~
~~~
/**
 * 
 * 獲取a-z,A-Z,0-9的隨機字符串
 * @param $len   （指定隨機字符串長度，可選，默認長度=6）
 * @return string
 * /
~~~

* * * * *
例：
~~~
echo getRandStr();
~~~
=> 1RI4pK 


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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