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                            ~~~
if (!function_exists('cut_decimal')) {
    /**
     * 截取小數
     */
    function cut_decimal($value, $len = 4)
    {
        if(!is_numeric($value)){
            return $value;
        }
        return intval($value * pow(10, $len))/ pow(10, $len);
    }
}
~~~

```
if (!function_exists('randomFloat')) {
    /**
     * 隨機小數
     */
    function randomFloat($min = 0, $max = 1)
    {
        return cut_decimal($min + mt_rand() / mt_getrandmax() * ($max - $min), 3);
    }
}
```
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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