How to Set Variables in a Laravel Blade Template

Question

I m reading the Laravel Blade documentation and I can t figure out how to assign variables inside a template for use later  I can t do     old section    whatever     because that will echo  whatever  and I don t want that   I understand that I can do  lt  php  old section    whatever     gt   but that s not elegant   Is there a better  elegant way to do that in a Blade template

User · Answer

And suddenly nothing will appear  From my experience  if you have to do something like this prepare the html in a model s method or do some reorganizing of your code in to arrays or something     There is never just 1 way       x   1

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It s better to practice to define variable in Controller and then pass to view using compact   or - gt with   method   Otherwise  TLGreg gave best answer

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I had a similar question and found what I think to be the correct solution with View Composers  View Composers allow you to set variables every time a certain view is called  and they can be specific views  or entire view templates  Anyway  I know it s not a direct answer to the question  and 2 years too late  but it seems like a more graceful solution than setting variables within a view with blade   View  composer array  AdminViewPath    LoginView subview    function  view         view- gt with array  bodyClass    gt   admin

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I m going to extend the answer given by  Pim   Add this to the boot method of your AppServiceProvider   lt  php     --------------------------------------------------------------------------   Extend blade so we can define a variable    lt code gt     set name  value     lt  code gt   --------------------------------------------------------------------------     Blade  directive  set   function  expression        list  name   val    explode       expression       return   lt  php   name      val     gt          This way you don t expose the ability to write any php expression   You can use this directive like    set  var  10   set  var2   some string

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In Laravel 4   If you wanted the variable accessible in all your views  not just your template  View  share is a great method  more info on this blog    Just add the following in app controllers BaseController php  class BaseController extends Controller     public function   construct                                 Share a var with all views     View  share  myvar    some value            and now  myvar will be available to all your views -- including your template    I used this to set environment specific asset URLs for my images

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In laravel-4  you can use the template comment syntax to define set variables   Comment syntax is    -- anything here is comment --   and it is rendered by blade engine as   lt  php    anything here is comment      gt   so with little trick we can use it to define variables  for example    --    i 0    --     will be rendered by bladeas       lt  php       i 0         gt  which sets the variable for us   Without changing any line of code

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You Can Set Variables In The Blade Templating Engine The Following Ways  1  General PHP Block Setting Variable   lt  php  hello    Hello World      gt  Output     hello   2  Blade PHP Block Setting Variable   php  hello    Hello World     endphp Output     hello

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Since Laravel 5 2 23  you have the  php Blade directive  which you can use inline or as block statement    php  old section    whatever     or   php      old section    whatever   endphp

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If you have PHP 7 0   The simple and most effective way is with assignment inside brackets   The rule is simple  Do you use your variable more than once  Then declare it the first time it s used within brackets  keep calm and carry on    if   users   User  all   - gt count       foreach  users as  user          user- gt name       endforeach  else   There are no users   endif   And yes  I know about  forelse  this is just a demo   Since your variables are now declared as and when they are used  there is no need for any blade workarounds

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Ya ll are making it too complicated    Just use plain php    lt  php  i   1    gt     i     donesies    or https   github com alexdover blade-set looks pretty straighforward too   We re all kinda  hacking  the system by setting variables in views  so why make the  hack  more complicated then it needs to be   Tested in Laravel 4   Another benefit is that syntax highlighting works properly  I was using comment hack before and it was awful to read

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Hacking comments is not a very readable way to do it  Also editors will color it as a comment and someone may miss it when looking through the code   Try something like this           hello    world       It will compile into    lt  php echo      hello    world     gt       and do the assignment and not echo anything

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There is a very good extention for Blade radic blade-extensions  After you add it you can use  set variable name  variable value    set var  33     var

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You may use the package I have published  https   github com sineld bladeset  Then you easily set your variable    set  myVariable    existing variable      or   set  myVariable    Hello  World

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I also struggled with this same issue  But I was able to manage this problem by using following code segment  Use this in your blade template   lt input type  quot hidden quot  value  quot    old section    quot whatever quot     quot  gt      old section

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In laravel document https   laravel com docs 5 8 blade php You can do this way    php       my variable   123   endphp

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In Laravel 5 1  5 2   https   laravel com docs 5 2 views sharing-data-with-all-views     You may need to share a piece of data with all views that are rendered by your application  You may do so using the view factory s share method  Typically  you should place calls to share within a service provider s boot method  You are free to add them to the AppServiceProvider or generate a separate service provider to house them    Edit file   app Providers AppServiceProvider php   lt  php  namespace App Providers   class AppServiceProvider extends ServiceProvider               public function boot                 view  - gt share  key    value               public function register

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You can extend blade by using the extend method as shown below    Blade  extend function  value        return preg replace     var          lt  php   1     gt     value         after that initialize variables as follows    var  var    var

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I was looking for a way to assign a value to a key and use it many times in my view  For this case  you can use  section  key    value   in the first place and then call  yield  key   to output the value in other places in your view or its child

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It is discouraged to do in a view so there is no blade tag for it  If you do want to do this in your blade view  you can either just open a php tag as you wrote it or register a new blade tag  Just an example    lt  php         lt code gt         old section    whatever         lt  code gt      Blade  extend function  value        return preg replace                     lt  php   1    gt     value

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Assign variable to the blade template  Here are the solutions  We can use  lt  php   gt  tag in blade page   lt  php  var    test     gt      var     OR  We can use the blade comment with special syntax     --    var    test    --       var

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There is a simple workaround that doesn t require you to change any code  and it works in Laravel 4 just as well   You just use an assignment operator     in the expression passed to an  if statement  instead of  for instance  an operator such as       if   variable    any data  be it string  variable or OOP    endif   Then you can use it anywhere you can use any other variable      variable      The only downside is your assignment will look like a mistake to someone not aware that you re doing this as a workaround

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As for my elegant way is like the following          old section    whatever        And just echo your  old section variable       old section

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laravel 5 you can easily do this   see below     --     variable name    value     --

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LARAVEL 5 5 AND UP  The  php blade directive no longer accepts inline tags  Instead  use the full form of the directive    php  i   1  endphp   LARAVEL 5 2 AND UP  You can just use    php   i   1    Or you can use it in a block statement    php  i   1  endphp   LARAVEL 5  Extend Blade like this       --------------------------------------------------------------------------   Extend blade so we can define a variable    lt code gt     define  variable    whatever     lt  code gt   --------------------------------------------------------------------------      Blade  extend function  value        return preg replace     define          lt  php   1     gt     value         Then do one of the following   Quick solution  If you are lazy  just put the code in the boot   function of the AppServiceProvider php   Nicer solution  Create an own service provider  See https   stackoverflow com a 28641054 2169147 on how to extend blade in Laravel 5  It s a bit more work this way  but a good exercise on how to use Providers     LARAVEL 4  You can just put the above code on the bottom of app start global php  or any other place if you feel that is better      After the above changes  you can use    define  i   1   to define a variable

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In my opinion it would be better to keep the logic in the controller and pass it to the view to use  This can be done one of two ways using the  View  make  method  I am currently using Laravel 3 but I am pretty sure that it is the same way in Laravel 4   public function action hello  userName        return View  make  hello  - gt with  name    userName       or  public function action hello  first   last         data   array           forename     gt   first           surname    gt   last            return View  make  hello    data       The  with  method is chainable  You would then use the above like so    lt p gt Hello    name   lt  p gt    More information here   http   three laravel com docs views  http   codehappy daylerees com using-controllers

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inside the blade file  you can use this format  php    i    endphp

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I don t think that you can - but then again  this kind of logic should probably be handled in your controller and passed into the view already set

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works in all versions of blade     --     optionsArray     A    B    C    D   E   F   G   H   J   K     --

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You can set a variable in the view file  but it will be printed just as you set it  Anyway  there is a workaround  You can set the variable inside an unused section  Example    section  someSection         yourVar    Your value      endsection   Then     yourVar    will print Your value anywhere you want it to  but you don t get the output when you save the variable   EDIT  naming the section is required otherwise an exception will be thrown

[php] How to Set Variables in a Laravel Blade Template

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