PHP Remove elements from associative array

Question

I have an PHP array that looks something like this    Index              Key     Value  0                 1       Awaiting for Confirmation  1                 2       Assigned  2                 3       In Progress  3                 4       Completed  4                 5       Mark As Spam   When I var dump the array values i get this   array 5     0   gt  array 2      key    gt  string 1   1    value    gt  string 25   Awaiting for Confirmation     1   gt  array 2      key    gt  string 1   2    value    gt  string 9   Assigned     2   gt  array 2      key    gt  string 1   3    value    gt  string 11   In Progress     3   gt  array 2      key    gt  string 1   4    value    gt  string 9   Completed     4   gt  array 2      key    gt  string 1   5    value    gt  string 12   Mark As Spam        I wanted to remove Completed and Mark As Spam  I know I can unset  array 3   array 4    but the problem is that sometimes the index number can be different   Is there a way to remove them by matching the value name instead of the key value

User · Answer

key   array search  Mark As Spam    array   unset  array  key      For 2D arrays      remove   array  Mark As Spam    Completed    foreach  arrays as  array       foreach  array as  key   gt   value           if in array  value   remove   unset  array  key

User · Answer

array   array        1   gt   Awaiting for Confirmation          2   gt   Asssigned          3   gt   In Progress          4   gt   Completed          5   gt   Mark As Spam              return array values  array

User · Answer

Why do not use array diff    array   array      1   gt   Awaiting for Confirmation        2   gt   Asssigned        3   gt   In Progress        4   gt   Completed        5   gt   Mark As Spam        to delete   array  Completed    Mark As Spam     array   array diff  array   to delete     Just note that your array would be reindexed

User · Answer

I kinda disagree with the accepted answer  Sometimes an application architecture doesn t want you to mess with the array id  or makes it inconvenient  For instance  I use CakePHP quite a lot  and a database query returns the primary key as a value in each record  very similar to the above    Assuming the array is not stupidly large  I would use array filter  This will create a copy of the array  minus the records you want to remove  which you can assign back to the original array variable    Although this may seem inefficient it s actually very much in vogue these days to have variables be immutable  and the fact that most php array functions return a new array rather than futzing with the original implies that PHP kinda wants you to do this too  And the more you work with arrays  and realize how difficult and annoying the unset   function is  this approach makes a lot of sense   Anyway    my array   array filter  my array                            function  el                                 return  el  value     Completed   amp  amp   el   value     Marked as Spam                                   You can use whatever inclusion logic  eg  your id field  in the embedded function that you want

User · Answer

You can use this   unset  dataArray  key

User · Answer

The way to do this to take your nested target array and copy it in single step to a non-nested array  Delete the key s  and then assign the final trimmed array to the nested node of the earlier array  Here is a code to make it simple    temp array    list  resultset   0    unset  temp array  badkey1     unset  temp array  badkey2       list  resultset   0     temp array

User · Answer

for single array Item use reset  item

User · Answer

Try this    keys   array keys  array   Completed       edit As mentioned by JohnP  this method only works for non-nested arrays

User · Answer

Your array is quite strange   why not just use the key as index  and the value as    the value    Wouldn t it be a lot easier if your array was declared like this     array   array      1   gt   Awaiting for Confirmation        2   gt   Asssigned        3   gt   In Progress        4   gt   Completed        5   gt   Mark As Spam         That would allow you to use your values of key as indexes to access the array      And you d be able to use functions to search on the values  such as array search       indexCompleted   array search  Completed    array   unset  array  indexCompleted      indexSpam   array search  Mark As Spam    array   unset  array  indexSpam     var dump  array     Easier than with your array  no        Instead  with your array that looks like this     array   array      array  key    gt  1   value    gt   Awaiting for Confirmation         array  key    gt  2   value    gt   Asssigned         array  key    gt  3   value    gt   In Progress         array  key    gt  4   value    gt   Completed         array  key    gt  5   value    gt   Mark As Spam          You ll have to loop over all items  to analyse the value  and unset the right items    foreach   array as  index   gt   data        if   data  value       Completed      data  value       Mark As Spam             unset  array  index            var dump  array     Even if do-able  it s not that simple    and I insist   can you not change the format of your array  to work with a simpler key value system

[php] PHP Remove elements from associative array

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