Global variable in controller

Hello guys.

I want to create a varible which should be available in two different controller functions. How can I do that?

For example, the first function gets data from a blade and I want to pass it to another function in the same controller. My code sample is this:

The blade which sends obj_id:

<!DOCTYPE html>

<html>
<meta charset="UTF-8">
<head>

<title>test</title>
</head>


<body>

    <form method='post' action="/hard">
        {{csrf_field()}}
        <br>
        <legend><i> fill number </i></legend>
        <br>
        <label>
            OBJECT ID:
            <input name='obj_id' type='text' minlength="8" required="" oninvalid="this.setCustomValidity('At least 8 characters must be used)">
        </label>
        <br>

        <input type='submit' value="Υποβολή!">
    </form>
    <br>
    <br>
    
</body>
</html>

This is my controller function Roger which gets obj_id from blade.

public function Roger(Request $p)
    {
        $t = $p-> get('obj_id');   //I want $ to be available to other controller functions
            
    }

How to pass $t to another function (e.g. Roger1) in the same blade and just dd it?

public function Roger1()
    {
        
        dd(t);
    }

I have tried to declade global t but didn't work.

Thanks a lot!

jlrdw

7 years ago

Level 75

I would highly suggest you take these lessons:

https://laracasts.com/series/php-for-beginners

https://laracasts.com/series/laravel-from-scratch-2018

It's called a session. Store the variable in session to reuse:

https://laravel.com/docs/5.8/session

$this->Roger1($p);
// will just pass variable to another function in same controller

Snapey

7 years ago

Level 122

you would be best to study and understand the request lifecycle

jlrdw

7 years ago

Level 75

I want $ to be available to other controller functions

Above I didn't know if you always meant in the same controller, or other controllers as well.

konrms

7 years ago

Level 1

@JLRDW - Hi jlrdw.

Yes, I want to be transferred to another function in the same controller only.

If I add the following line to Roger

$this -> Roger1($p);

I get this (?):

Request {#42 ▼
  #json: null
  #convertedFiles: null
  #userResolver: Closure($guard = null) {#211 ▶}
  #routeResolver: Closure() {#213 ▶}
  +attributes: ParameterBag {#44 ▶}
  +request: ParameterBag {#43 ▶}
  +query: ParameterBag {#50 ▼
    #parameters: []
  }
  +server: ServerBag {#46 ▶}
  +files: FileBag {#47 ▶}
  +cookies: ParameterBag {#45 ▶}
  +headers: HeaderBag {#48 ▶}
  #content: null
  #languages: null
  #charsets: null
  #encodings: null
  #acceptableContentTypes: null
  #pathInfo: "/hard"
  #requestUri: "/hard"
  #baseUrl: ""
  #basePath: null
  #method: "POST"
  #format: null
  #session: Store {#248 ▼
    #id: "y3kO9bIBPS3WiQIwyynz27yO5mbFBUHWZ7vyBnJ6"
    #name: "laravel_session"
    #attributes: array:3 [▶]
    #handler: FileSessionHandler {#249 ▶}
    #started: true
  }
  #locale: null
  #defaultLocale: "en"
  -isHostValid: true
  -isForwardedValid: true
  basePath: ""
  format: "html"
}

konrms

6 years ago

Best Answer

Level 1

My solution (may not the be best but worked fine for me) was to store variable data into a database table and then request this data twice via the same query inside each function.

Please or to participate in this conversation.