Question

How to generate N random digits in PHP

Answer 1

function GenerateRandomDigits($num_digits)  
{   
  srand((double)microtime()*getrandmax()); 
  $range = 8; 
  $start = 1; 
  $i = 1; 
  while ($i < $num_digits)  
  { 
        $range = $range . 9; 
        $start = $start . 0; 
        $i++; 
  } 
  return (rand()%$range + $start);   
} 

echo GenerateRandomDigits(5);
 
 
/*
run:
   
39245
   
*/

 

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