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how to generate random number

  #1  
Old July 17th, 2005, 01:17 PM
vishal
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hi

i want to generate a string which contains 5 characters and all 5
characters are randomly generated means it is not fixed that which
string i will get after i execute function.

so tell me random number generation in php

thxs in advance.

  #2  
Old July 17th, 2005, 01:17 PM
Chris Hope
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re: how to generate random number


vishal wrote:
[color=blue]
> i want to generate a string which contains 5 characters and all 5
> characters are randomly generated means it is not fixed that which
> string i will get after i execute function.
>
> so tell me random number generation in php[/color]

Random number generating function manual page: http://www.php.net/rand

To get your 5 character string you'll want to do something along the
lines of:

$x = '';
for($i = 0; $i < 5; $i++) {
$x .= chr(rand(97, 122));
}

--
Chris Hope | www.electrictoolbox.com | www.linuxcdmall.com
  #3  
Old July 17th, 2005, 01:17 PM
Alvaro G. Vicario
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re: how to generate random number


*** vishal escribió/wrote (25 Mar 2005 00:13:17 -0800):[color=blue]
> i want to generate a string which contains 5 characters and all 5
> characters are randomly generated means it is not fixed that which
> string i will get after i execute function.[/color]

Your function is mt_rand(). The manual page includes some user comments you
can just copy & paste. Don't forget to generate a 'random' seed with
mt_srand().

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