Reverse order of foreach list items

Question

I would like to reverse the order of this code s list items  Basically it s a set of years going from oldest to recent and I am trying to reverse that output    lt  php      j 1           foreach    skills nav as  skill              a     lt li gt  lt a href     data-filter      skill- gt slug    gt             a     skill- gt name                            a      lt  a gt  lt  li gt            echo  a          echo   n            j            gt

User · Answer

If your array is populated through an SQL Query consider reversing the result in MySQL  ie     SELECT   FROM model input order by creation date desc

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Assuming you just need to reverse an indexed array  not associative or multidimensional  a simple for loop would suffice    fruits     bananas    apples    pears    for  i   count  fruits -1   i  gt   0   i--        echo  fruits  i      lt br gt

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Or you could use the array reverse function

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Walking Backwards If you re looking for a purely PHP solution  you can also simply count backwards through the list  access it front-to-back   accounts   Array      jonathansampson       f12devtools       ieanswers       index   count  accounts    while  index      echo sprintf  quot  lt li gt  s lt  li gt  quot    accounts -- index       The above sets  index to the total number of elements  and then begins accessing them back-to-front  reducing the index value for the next iteration  Reversing the Array You could also leverage the array reverse function to invert the values of your array  allowing you to access them in reverse order   accounts   Array      jonathansampson       f12devtools       ieanswers      foreach   array reverse  accounts  as  account       echo sprintf  quot  lt li gt  s lt  li gt  quot    account

User · Answer

array reverse   does not alter the source array  but returns a new array   See array reverse      So you either need to store the new array first or just use function within the declaration of your for loop    lt  php       input   array  a    b    c        foreach  array reverse  input  as  value            echo  value   n           gt    The output will be   c b a   So  to address to OP  the code becomes    lt  php      j 1           foreach   array reverse  skills nav  as  skill              a     lt li gt  lt a href     data-filter      skill- gt slug    gt             a     skill- gt name                            a      lt  a gt  lt  li gt            echo  a          echo   n            j        Lastly  I m going to guess that the  j was either a counter used in an initial attempt to get a reverse walk of  skills nav  or a way to count the  skills nav array   If the former  it should be removed now that you have the correct solution  If the latter  it can be replaced  outside of the loop  with a  j   count  skills nav

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If you don t mind destroying the array  or a temp copy of it  you can do    stack   array  orange    banana    apple    raspberry     while   fruit   array pop  stack        echo  fruit     n lt br gt         produces   raspberry  apple  banana  orange    I think this solution reads cleaner than fiddling with an index and you are less likely to introduce index handling mistakes  but the problem with it is that your code will likely take slightly longer to run if you have to create a temporary copy of the array first  Fiddling with an index is likely to run faster  and it may also come in handy if you actually need to reference the index  as in    stack   array  orange    banana    apple    raspberry     index   count  stack  - 1  while  index  gt  -1       echo  stack  index     is in position     index     n lt br gt         index--       But as you can see  you have to be very careful with the index

User · Answer

You can use usort function to create own sorting rules

User · Answer

lt  php      j 1           array reverse  skills nav            foreach    skills nav as  skill              a     lt li gt  lt a href     data-filter      skill- gt slug    gt             a     skill- gt name                            a      lt  a gt  lt  li gt            echo  a          echo   n            j            gt

[php] Reverse order of foreach list items

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