Rebase array keys after unsetting elements

Question

I have an array    array   array 1 2 3 4 5     If I were to dump the contents of the array they would look like this   array 5       0    gt  int 1     1    gt  int 2     2    gt  int 3     3    gt  int 4     4    gt  int 5      When I loop through and unset certain keys  the index gets all jacked up    foreach  array as  i   gt   info      if  info    1     info    2          unset  array  i            Subsequently  if I did another dump now it would look like    array 3       2    gt  int 3     3    gt  int 4     4    gt  int 5      Is there a proper way to reset the array so it s elements are Zero based again      array 3       0    gt  int 3     1    gt  int 4     2    gt  int 5

User · Answer

I use   arr   array merge  arr    to rebase an array  Simple and straightforward

User · Answer

Try this    array   array values  array     Using array values

User · Answer

100  working for me   After unset elements in array you can use this for re-indexing the array    result array combine range 1  count  your array    array values  your array

User · Answer

Just an additive   I know this is old  but I wanted to add a solution I don t see that I came up with myself  Found this question while on hunt of a different solution and just figured   Well  while I m here    First of all  Neal s answer is good and great to use after you run your loop  however  I d prefer do all work at once  Of course  in my specific case I had to do more work than this simple example here  but the method still applies  I saw where a couple others suggested foreach loops  however  this still leaves you with after work due to the nature of the beast  Normally I suggest simpler things like foreach  however  in this case  it s best to remember good old fashioned for loop logic  Simply use i  To maintain appropriate index  just subtract from i after each removal of an Array item   Here s my simple  working example    array   array 1 2 3 4 5    for   i   0   i  lt  count  array    i          if  array  i     1     array  i     2            array splice  array   i  1            i--            Will output   array 3         0   gt  int 3       1   gt  int 4       2   gt  int 5        This can have many simple implementations  For example  my exact case required holding of latest item in array based on multidimensional values   I ll show you what I mean    files   array      array           name    gt   example zip            size    gt   100000000            type    gt   application x-zip-compressed            url    gt   28188b90db990f5c5f75eb960a643b96 example zip            deleteUrl    gt   server php  file example zip            deleteType    gt   DELETE             array           name    gt   example zip            size    gt   10726556            type    gt   application x-zip-compressed            url    gt   28188b90db990f5c5f75eb960a643b96 example zip            deleteUrl    gt   server php  file example zip            deleteType    gt   DELETE             array           name    gt   example zip            size    gt   110726556            type    gt   application x-zip-compressed            deleteUrl    gt   server php  file example zip            deleteType    gt   DELETE             array           name    gt   example2 zip            size    gt   12356556            type    gt   application x-zip-compressed            url    gt   28188b90db990f5c5f75eb960a643b96 example2 zip            deleteUrl    gt   server php  file example2 zip            deleteType    gt   DELETE            for   i   0   i  lt  count  files    i          if   i  gt  0            if  is array  files  i-1                  if   key exists  name   array diff  files  i    files  i-1                       if   key exists  url    files  i    amp  amp  key exists  url    files  i-1     files  i   url      files  i-1   url                     i--                  array splice  files   i  1                                     Will output   array 1         0   gt  array 6                  name    gt  string 11   example zip                size    gt  string 9   110726556                type    gt  string 28   application x-zip-compressed                deleteUrl    gt  string 28   server php  file example zip                deleteType    gt  string 6   DELETE                url    gt  string 44   28188b90db990f5c5f75eb960a643b96 example zip                 1   gt  array 6                  name    gt  string 11   example2 zip                size    gt  string 9   12356556                type    gt  string 28   application x-zip-compressed                deleteUrl    gt  string 28   server php  file example2 zip                deleteType    gt  string 6   DELETE                url    gt  string 45   28188b90db990f5c5f75eb960a643b96 example2 zip                As you see  I manipulate  i before the splice as I m seeking to remove the previous  rather than the present item

User · Answer

In my situation  I needed to retain unique keys with the array values  so I just used a second array    arr1   array  alpha   gt  bravo   charlie   gt  delta   echo   gt  foxtrot    unset  arr1     arr2   array    foreach  arr1 as  key  gt  value   arr2  key     value   arr1    arr2 unset  arr2

User · Answer

Got another interesting method     array   array  a    b    c    d     unset  array 2       array   array merge  array      Now the  array keys are reset

User · Answer

Late answer but  after PHP 5 3 could be so    array   array 1  2  3  4  5    array   array values array filter  array  function  v        return    v    1     v    2        print r  array

User · Answer

Or you can make your own function that passes the array by reference   function array unset  unsets   amp  array      foreach   array as  key   gt   value        foreach   unsets as  unset          if   value     unset            unset  array  key            break                       array   array values  array       So then all you have to do is      unsets   array 1 2   array unset  unsets   array         and now your  array is without the values you placed in  unsets and the keys are reset

User · Answer

Use array splice rather than unset    array   array 1 2 3 4 5   foreach  array as  i   gt   info      if  info    1     info    2          array splice  array   i  1          print r  array     Working sample here

[php] Rebase array keys after unsetting elements

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