Re: replace %rand[x]-[y]% macro in string with random string
| From: | Robert Cummings | Date: | Tue, 02 Dec 2003 23:56:28 +0000 |
| Subject: | Re: replace %rand[x]-[y]% macro in string with random string | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-171613@lists.php.net to get a copy of this message | ||
On Tue, 2003-12-02 at 18:33, Richard Davey wrote:
> Hello Daniel,
>
> Tuesday, December 2, 2003, 10:46:33 PM, you wrote:
>
> dh> For generation of a random string with length 1.000.000 it takes about
> dh> 13 seconds on my xp 1600+.. that's quite a lot, imho, so suggestions
> dh> are very welcome..
>
I missed the original post, and I'm too lazy to go looking, but the
following code runs in approx. 2.75 seconds on my Athlon 2400 running
linux:
$chars = '0123456789'
.'abcdefghijklmnopqrstuvwxyz'
.'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charArray = array();
for( $i = 0; $i < 1000000; $i++ )
{
$charArray[] = $chars[rand( 0, 61 )];
}
It's runs much faster than using a .= style of string creation.
Cheers,
Rob.
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