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PHP generates random strings (customized pure numbers, pure letters or a mixture of numbers and letters)

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Release： 2016-07-25 08:53:26
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  3. //Generate a random string

  4. function rand_zifu($what,$number){
  5. $string='';
  6. for($i = 1; $i < ;= $number; $i++){
  7. //Mixed
  8. $panduan=1;
  9. if($what == 3){
  10. if(rand(1,2)==1){
  11. $what=1;
  12. }else{
  13. $what=2;
  14. }
  15. $panduan=2;
  16. }

  17. //Number

  18. if($what==1){
  19. $string.=rand(0 ,9);
  20. }elseif($what==2){
  21. //letter
  22. $rand=rand(0,24);
  23. $b='a';
  24. for($a =0;$a < =$rand;$a++){
  25. $b++;
  26. }
  27. $string.=$b;
  28. }
  29. if($panduan==2)$what=3;
  30. }
  31. return $string;
  32. }
  33. echo rand_zifu (3,10);

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Related labels：
php生成随机字符串(自定义纯数字、纯字母或数字字母混合)
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