Generate multiple non-repeating random numbers PHP

This is no good nonsense;

The first is to use the Mt_rand () function to generate a specified number of random numbers;

Then use the Array_unique () function to go heavy;

Because go heavy, so get the number is not enough to specify the number of;

So, the core is to use the while loop, until the number of the specified number is obtained;

The basic can be the end here;

For the perfect person, you can also use a sort ();

The purpose is not to be used for sorting; The key is to format the resulting array key;

To speak in code, as follows;

/** * Generate non-repeating random number * @param int $start need to generate the number start range * @param int $end end range * @param int $length The number of random numbers to generate * @return AR    Ray generated random number */function Get_rand_number ($start =1, $end =10, $length =4) {$connt = 0;    $temp =array ();        while ($connt < $length) {$temp []=mt_rand ($start, $end);        $data =array_unique ($temp);    $connt =count ($data);    } sort ($data); return $data;}

Of course, the emphasis is not on this function; The emphasis is on the idea of this function; it can solve many similar problems;

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Generate multiple non-repeating random numbers PHP