for loop problem while generating random code

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Hi,I have generated random strings,but now i want multiple number of random strings at a time.. what can i do in my following coding??

PHP

function rand_string($l){  
  $s= "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";  
  srand((double)microtime()*1000000);  
  
  {
  for($i=0; $i<$l; $i++)
  {  
      $rand.= $s[rand()%strlen($s)];                       
      
  }
  
  return $rand; 
 } 
 $l=8;  
 $string=rand_string($l);
 print $string;

I know I have to use here FOR loop with rand function...but how i don't have any idea please help;;

Posted 22-Oct-12 0:13am

project virus

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Rohit Shrivastava 22-Oct-12 14:22pm

You could probably pass the seed to rand function, though i am not familiar with PHP but random function normally takes seed.

1 solution

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Ankit Jain · Accepted Answer · 2012-10-22T11:09:00

Solution 1

function rand_string($l){  
  $s= "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";  
  srand((double)microtime()*1000000);  
  
  {
  for($i=0; $i<$l; $i++)
  {  
      $rand.= $s[rand()%strlen($s)];                       
      
  }
  
  return $rand; 
 } 
 $l=8;

for($i=0;$i<10;$i++)
  $random_strings[] = rand_string($l);

//$random_strings is an array containing all the random strings generated.

print_r($random_strings);

Posted 22-Oct-12 11:09am

Ankit Jain

Updated 23-Oct-12 7:35am

v3

Comments

project virus 23-Oct-12 6:10am

thanks ankit.but can u plz tell me how to print it in array?

Ankit Jain 23-Oct-12 13:35pm

updated the ans.