2 piece randomisation script.

[PoorDoggie]

Hi,

I need to write a script that will show a string 50% of the time and another string the other 50% of the time, but not always one after the other.

ie: I don't want someone to be able to anticipate which one is coming next.

so, can anyone help me randomise two strings, lets call them str1 and str2? I just don't know very much about randomisation. (well, nothing in fact)

They can't be bias though, the probability of either showing up should be 50%.

Thanks
Tom

 

[MrBarby]

if(rand(0,1) == 0)
    echo $str1;
else
    echo $str2;

Should work for just 2 strings

 

[PoorDoggie]

that simple huh?

Thanks a lot!

 

[Eric]

echo (mt_rand(0, 1) == 0) ? $str1 : $str2;

Cleaner :p Sorry, had to

 

[PoorDoggie]

:lol: what is the difference between mt_rand and rand?

 

[Dan]

It is 4 times faster.

 

[Peter]

echo (mt_rand(0, 1) == 0) ? $str1 : $str2;

Cleaner :p Sorry, had to

it maybe cleaner but harder to read.

 

[PoorDoggie]

not really, but the point is that I define a variable before and then if rand(1,0)==0 then I change it, so I can't do it the second way!

Thanks
Tom