# PHP array based on probability returned algorithm

Source: Internet
Author: User
PHP array according to the probability returned algorithm now has a 9 key array: \$ arr = array (, 9); I want: 1's return probability is 30% 2's return probability is 20% 3's return probability is 10% 4's return probability is 50% others no matter how such an algorithm calculates it, does this mean? \$ ConfigArr PHP array algorithm returned by probability
Now there is a 9-key array:
\$ Arr = array (1, 2, 3, 4, 5, 6, 7, 8, 9 );
I hope:
The return probability of 1 is 30%.
The return probability of 2 is 20%.
The return probability of 3 is 10%.
4. The return probability is 50%.
Other
How is this algorithm calculated?

------ Solution --------------------
What does that mean?

\$ ConfigArr = array ('20140901', '20160901', '20160901', '20160901 ');

\$ Arr = array (1, 2, 3, 4, 5, 6, 7, 8, 9 );
Foreach (\$ arr as \$ key => \$ val)
Echo isset (\$ ConfigArr [\$ key])? \$ Val. 'probability: '. \$ ConfigArr [\$ key].'
':'';
------ Solution --------------------
Discussion

What does that mean?

\$ ConfigArr = array ('20140901', '20160901', '20160901', '20160901 ');

\$ Arr = array (1, 2, 3, 4, 5, 6, 7, 8, 9 );
Foreach (\$ arr as \$ key => \$ val)
Echo isset (\$ ConfigArr [\$ key])? \$ Val. 'probability: '. \$ ConfigArr [\$ key].'
':......

------ Solution --------------------
Discussion

Reference:

What does that mean?

\$ ConfigArr = array ('20140901', '20160901', '20160901', '20160901 ');

\$ Arr = array (1, 2, 3, 4, 5, 6, 7, 8, 9 );
Foreach (\$ arr as \$ key => \$ val)
Echo isset (\$ ConfigArr [\$ key])? \$ Val. 'probability: '. \$ ConfigArr [\$ k ......

------ Solution --------------------
Is it true that a number in \$ arr = array (, 9); is returned through a function;

The return letter rate is:

The return probability of 1 is 30%.
The return probability of 2 is 20%.
The return probability of 3 is 10%.
4. The return probability is 50%.

!
Is that true?
I have a full idea?
------ Solution --------------------
The numbers are random one by one, for example, 1-random numbers. Returns 1, <= 30, random again, returns 2, <= 20

In short, the number of returned results may exceed 1.
------ Solution --------------------
No .. Soon after I changed my clothes, I was found so quickly ......

Discussion
I wiped it .. The Avatar will also change clothes.

------ Solution --------------------
Agree with amani11.
@ #2 as to whether each number is returned, it is completely an independent event. why should we check whether it is equal to or greater than 100%?
Related Keywords:

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