Twig in array or similar possible within if statement

Question

I am using Twig as templating engine and I am really loving it  However  now I have run in a situation which definitely mustbe accomplishable in a simpler way than I have found   What I have right now is this      for myVar in someArray               set found   0           for id  data in someOtherArray               if id    myVar                   myVar    exists within someOtherArray                 set found   1                endif           endfor            if found    0               myVar    doesn t exist within someOtherArray         endif       endfor      What I am looking for is something more like this      for myVar in someArray               if myVar is in array array keys someOtherArray                myVar    exists within someOtherArray         else              myVar    doesn t exist within someOtherArray         endif       endfor      Is there a way to accomplish this which I haven t seen yet   If I need to create my own extension  how can I access myVar within the test function   Thanks for your help

User · Accepted Answer

You just have to change the second line of your second code-block from

{% if myVar is in_array(array_keys(someOtherArray)) %}

to

{% if myVar in someOtherArray|keys %}

in is the containment-operator and keys a filter that returns an arrays keys.

User · Answer

It should help you      for user in users if user active and user id not 1          user name       endfor      More info  http   twig sensiolabs org doc tags for html

User · Answer

Try this     if var in   foo    bar    beer                 endif

User · Answer

another example following  jake stayman       for key  item in row divs           if  key not in  1 2 9         eliminate element 1 2 9          lt li gt    item    lt  li gt         endif       endfor

User · Answer

Though The above answers are right  I found something more user-friendly approach while using ternary operator      attachment in item  Attachments   0     y     n       If someone need to work through foreach then      for attachment in attachments           attachment in item  Attachments   0     y     n        endfor

User · Answer

Just to clear some things up here  The answer that was accepted does not do the same as PHP in array   To do the same as PHP in array use following expression      if myVar in myArray      If you want to negate this you should use this      if myVar not in myArray

[twig] Twig: in_array or similar possible within if statement?

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