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 numbers
* @param int $start The number start range that needs to be generated
* @param int $end End Range
* @param int $length The number of random numbers that need to be generated
* @return random number generated by array
*/
function Get_rand_number ($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;

Generate multiple non-repeating random numbers PHP