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I have 2 arrays. 1 fetching from database and other one is from view page. I am developing a online test exam website so i have to check if the answer entered by user is correct or not.Here is the 1st one. 

 Array
    (
        [0] => Array
            (
                [Question] => Array
                    (
                        [id] => 51f92e34-c5a8-4de3-b264-0ff0d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [paper_id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [qus] => What is ur name?
                        [slug] => name-find
                        [image] => 
                        [opt1] => x
                        [opt2] => y
                        [opt3] => a
                        [opt4] => b
                        [opt5] => c
                        [answer_id] => 4
                        [description] => 
                        [ansimage] => 
                    )

                [Aptitude] => Array
                    (
                        [id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => php
                        [slug] => php
                    )

                [Paper] => Array
                    (
                        [id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => aptitude1
                        [slug] => aptitude1
                    )

                [Answer] => Array
                    (
                        [id] => 4
                        [name] => D
                    )

            )

        [1] => Array
            (
                [Question] => Array
                    (
                        [id] => 51fe4098-c344-4790-9e46-0fb4d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [paper_id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [qus] => Place?
                        [slug] => place
                        [image] => 
                        [opt1] => ss
                        [opt2] => sss
                        [opt3] => ss
                        [opt4] => ss
                        [opt5] => ss
                        [answer_id] => 3
                        [description] => 
                        [ansimage] => 
                    )

                [Aptitude] => Array
                    (
                        [id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => php
                        [slug] => php
                    )

                [Paper] => Array
                    (
                        [id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => aptitude1
                        [slug] => aptitude1
                    )

                [Answer] => Array
                    (
                        [id] => 3
                        [name] => C
                    )

            )

        [2] => Array
            (
                [Question] => Array
                    (
                        [id] => 51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [paper_id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [qus] => hayywep?
                        [slug] => dada
                        [image] => 
                        [opt1] => a
                        [opt2] => a
                        [opt3] => a
                        [opt4] => a
                        [opt5] => a
                        [answer_id] => 3
                        [description] => 
                        [ansimage] => 
                    )

                [Aptitude] => Array
                    (
                        [id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => php
                        [slug] => php
                    )

                [Paper] => Array
                    (
                        [id] => 51f924cc-a158-441e-9119-0ff0d0483c4c
                        [aptitude_id] => 51f92441-d510-4c3d-85e3-0ff0d0483c4c
                        [name] => aptitude1
                        [slug] => aptitude1
                    )

                [Answer] => Array
                    (
                        [id] => 3
                        [name] => C
                    )

            )

    )

and 



    Array
    (
        [51f92e34-c5a8-4de3-b264-0ff0d0483c4c] => 3
        [51fe4098-c344-4790-9e46-0fb4d0483c4c] => 3
        [51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c] => 3
    )

i wrote this code 

foreach($res as $res1): 

foreach($ans as $ans1):
if($res1['Question']['answer_id']==$ans1)
{
print_r($res1['Question']['id']);

}
endforeach;
endforeach;

Output: 

51f92e34-c5a8-4de3-b264-0ff0d0483c4c
51f92e34-c5a8-4de3-b264-0ff0d0483c4c
51f92e34-c5a8-4de3-b264-0ff0d0483c4c
51fe4098-c344-4790-9e46-0fb4d0483c4c
51fe4098-c344-4790-9e46-0fb4d0483c4c
51fe4098-c344-4790-9e46-0fb4d0483c4c
51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c
51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c
51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c

how to remove the duplication?

Improve this question
2
  • When you were typing your question, there was a How to Format box to the right of the text area. It's well worth giving that a read, and using the preview area underneat the text area to make sure your question is formatted in a way that people can readily read and answer it. I've formatted the code blocks and such for you on this occasion. Commented Aug 5, 2013 at 15:24
  • It's also best to open with a concise summary of your question, and then present the code/data/markup/etc., so people have some context. Commented Aug 5, 2013 at 15:25

1 Answer 1

Reset to default
1

Try array_unique

$_results = array();
    foreach($res as $res1): 

    foreach($ans as $ans1):
    if($res1['Question']['answer_id']==$ans1)
    {
    $_results[] = $res1['Question']['id'];

    }
    endforeach;
    endforeach;

    $results = array_unique($_results);
    pr($results);
Improve this answer
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1 Comment

Thankyou for the answer Tim Joyce. But i get the following result after executing your code . Array ( [0] => 51f92e34-c5a8-4de3-b264-0ff0d0483c4c [3] => 51fe4098-c344-4790-9e46-0fb4d0483c4c [6] => 51fe40ad-9ddc-4f07-94dc-0fb4d0483c4c )

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