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 $length The number of random numbers to generate *       the random number generated by the @return array */function get_rand_number ($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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