PHP if empty empty

Question

So i have this form   With 2 fields   Youtube  and  link  I want to do if you have filled in YouTube  it should do this   if  empty  youtube      if   pos     false      echo  Du skal indtaste youtube et URL  som starter med  http   www youtube com watch    lt br gt     echo   lt br gt  Har du ikke din video p   YouTube  skal du ikke udfylde feltet  men kun  Link  feltet  lt br gt  lt br gt     echo   lt a href  javascript history back     gt G   tilbage lt  a gt            This do its job  but i also want to check on the same if    if nothing in link  So ive did this       if  empty  youtube   amp  amp  empty  link          if   pos     false          echo  Du skal indtaste youtube et URL  som starter med  http   www youtube com watch    lt br gt         echo   lt br gt  Har du ikke din video p   YouTube  skal du ikke udfylde feltet  men kun  Link  feltet  lt br gt  lt br gt         echo   lt a href  javascript history back     gt G   tilbage lt  a gt               But what if i want to check the opposite  if theres something in LINK and nothing in youtube   And if i want to check if theres nothing at all in those two

User · Answer

For several cases  or even just a few cases involving a lot of criteria  consider using a switch   switch  true         case    empty  youtube   amp  amp   empty  link                 Nothing is empty            break             case    empty  youtube   amp  amp  empty  link                 One is empty            break             case   empty  youtube   amp  amp   empty  link                 The other is empty            break             case   empty  youtube   amp  amp  empty  link                 Everything is empty         break             default              Even if you don t expect ever to use it  it s a good idea to ALWAYS have a default             That way if you change it  or miss a case  you have some default handler          break             If you have multiple cases that require the same action  you can stack them and omit the break  to flowthrough   Just maybe put a comment like   Flowing through   so you re explicit about doing it on purpose   Note that the     around the cases aren t required  but they are nice for readability and code folding   More about switch  http   php net manual en control-structures switch php

User · Answer

Here s a compact way to do something different in all four cases    if empty  youtube         if empty  link               both empty       else             only  youtube not empty         else       if empty  link               only  link empty       else             both not empty           If you want to use an expression instead  you can use    instead   echo empty  youtube      empty  link     both empty     only  youtube not empty                             empty  link     only  link empty     both not empty

User · Answer

if  empty  youtube   amp  amp  empty  link        else if empty  youtube   amp  amp   empty  link        else if empty  youtube   amp  amp  empty  link

[php] PHP: if !empty & empty

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