Laravel check if collection is empty

Question

I ve got this in my Laravel webapp    foreach  mentors as  mentor       foreach  mentor- gt intern as  intern           lt tr class  table-row-link  data-href   werknemer      intern- gt employee- gt EmployeeId      gt               lt td gt     intern- gt employee- gt FirstName    lt  td gt               lt td gt      intern- gt employee- gt LastName    lt  td gt           lt  tr gt       endforeach  endforeach   How could I check if there are any  mentors- gt intern- gt employee    When I do     if count  mentors     It does not check for that

User · Answer

Starting from Laravel 5 3 you can simply use    if   mentor- gt isNotEmpty        do something      Documentation https   laravel com docs 5 5 collections method-isnotempty

User · Answer

From php7 you can use Null Coalesce Opperator    employee    mentors- gt intern     mentors- gt intern- gt employee   This will return Null or the employee

User · Answer

I prefer     mentor   Is more effective and accurate

User · Answer

You can always count the collection  For example  mentor- gt intern- gt count   will return how many intern does a mentor have   https   laravel com docs 5 2 collections method-count  In your code you can do something like this  foreach  mentors as  mentor       if  mentor- gt intern- gt count    gt  0       foreach  mentor- gt intern as  intern           lt tr class  table-row-link  data-href   werknemer      intern- gt employee- gt EmployeeId      gt               lt td gt     intern- gt employee- gt FirstName    lt  td gt               lt td gt      intern- gt employee- gt LastName    lt  td gt           lt  tr gt       endforeach      else         Mentor don t have any intern      endif  endforeach

User · Answer

To determine if there are any results you can do any of the following   if   mentor- gt first         if    mentor- gt isEmpty        if   mentor- gt count        if  count  mentor       if   mentor- gt isNotEmpty          Notes   References  - gt first     https   laravel com api 5 7 Illuminate Database Eloquent Collection html method first  isEmpty   https   laravel com api 5 7 Illuminate Database Eloquent Collection html method isEmpty  - gt count     https   laravel com api 5 7 Illuminate Database Eloquent Collection html method count  count  mentors  works because the Collection implements Countable and an internal count   method    https   laravel com api 5 7 Illuminate Database Eloquent Collection html method count  isNotEmpty    https   laravel com docs 5 7 collections method-isnotempty  So what you can do is    if    mentors- gt intern- gt employee- gt isEmpty

User · Answer

This is the best solution I found so far   in blade   if  mentors- gt count      0       lt td colspan  5  class  text-center  gt          Nothing Found      lt  td gt   endif   in controller  if   mentors- gt count      0        return  Nothing Found

User · Answer

This is the fastest way    if   coll- gt isEmpty            Other solutions like count do a bit more than you need which costs slightly more time    Plus  the isEmpty   name quite precisely describes what you want to check there so your code will be more readable

[php] Laravel check if collection is empty

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