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

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

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

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

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

[php] Laravel check if collection is empty

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