Concatenation with Blade in Laravel

Question

I'm trying to access a table column in my ItemController. In this instance, I wish to use the values in my array + a concatenated string to for the column name.

ItemController.php ....

public function displayItems() {
   $itemsList = array('Alpha','Bravo','Charlie','Delta');
   //$results = returned mysql row here
   return view('items', ['rs' => $results, 'items' => $itemsList]);
}

page.blade.php

@foreach ($items as $item)
  //$item is used elsewhere too, so keep $item
  {{$rs->$item.'_data'}}
@endforeach

Desired output:

$rs->Alpha_data;
$rs->Delta_data;
etc

How can I dynamically set a variable for $rs->name ?

Solution 1

Try to do this:

{{ $rs->${$item.'_data'} }}

http://php.net/manual/en/language.variables.variable.php

Solution 2

lets say you are retrieving a single record 'task', and this record has variables called 'var1','var2','var3' ... all the way to 'var16'.

you can echo those variables in your blade file like so:

@for($y=1; $y<=16; $y++)
 {{ $task->{'var'.$y} }}
@endfor

Comments

[ProEvilz]

What would be the best way to also call strtolower() on $item.'_data' ?

[Alexey Mezenin]

Try {{ $rs->${strtolower($item).'_data'} }}.

[geisterfurz007]

The . for concatenation is already used in the original post. Joining the strings itself is not the issue here as you can see with the accepted answer. As this answer does not really address this questions problems, you might want to remove it.

[fahdshaykh]

i have something like this. $category->category->category->name and how do i concatenate like this {{ $rs->${$item.'_data'} }} thanks if any answer on time.