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06-01-2006, 02:11 PM
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· #1 | | Soon to be RICHdoggie! Name: Tom Location: UK Join Date: Jan 2005
Posts: 2,390
NP$: 300.50 ( Donate)
| 2 piece randomisation script.
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
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06-01-2006, 02:23 PM
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· #2 | | NamePros Member | PHP Code: if(rand(0,1) == 0)
echo $str1;
else
echo $str2;
Should work for just 2 strings | |
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06-01-2006, 02:26 PM
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· #3 | | Soon to be RICHdoggie! Name: Tom Location: UK Join Date: Jan 2005
Posts: 2,390
NP$: 300.50 ( Donate)
| that simple huh?
Thanks a lot!  | |
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06-01-2006, 03:40 PM
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· #4 | | while ($awake){ code(); }  Name: Eric Location: Kentucky Join Date: Mar 2005
Posts: 4,268
NP$: 1152.00 ( Donate)
| PHP Code: echo (mt_rand(0, 1) == 0) ? $str1 : $str2;
Cleaner  Sorry, had to  | |
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06-01-2006, 04:04 PM
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· #5 | | Soon to be RICHdoggie! Name: Tom Location: UK Join Date: Jan 2005
Posts: 2,390
NP$: 300.50 ( Donate)
|  what is the difference between mt_rand and rand? | |
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06-01-2006, 06:25 PM
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· #6 | | Buy my domains. Name: Dan Join Date: Feb 2006
Posts: 2,801
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| It is 4 times faster. | |
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06-02-2006, 12:40 AM
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· #7 | | NamePros Staff Name: Peter Location: Scotland Join Date: Nov 2003
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it maybe cleaner but harder to read. | |
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06-02-2006, 07:53 AM
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· #8 | | Soon to be RICHdoggie! Name: Tom Location: UK Join Date: Jan 2005
Posts: 2,390
NP$: 300.50 ( Donate)
| 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 | |
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