How to change the string data to Laravel Query format

I am working on a project using Laravel 5.2. I have a search and CSV export functions. I want to export the latest search result as a CSV file if I click on CSV export link.

My logic is : I pass the search result to front-end (index.blade.php) and store the value in a hidden input field and when I click CSV export link, I will pass this hidden input to the CSV export controller and do the printing operation.

My problem is: how can I change these data format(the hidden input data)

"[{"memberId":9,"area_id":2,"status_id":0,"reference_id":0,"productname":null,"picaluminum":null,"companyName":"\u3066\u3059\u3068","name":"\u3066\u3059\u3068\u4f1a\u793e","job":3,"relationJob":null,"subJobCategory":null,"busyo":null,"eMail":"y_ikegami@queserser.co.jp","password":"queserser","zip1":"530","zip2":"0001","pref":27,"prefStr":"\u5927\u962a\u5e9c","address1":"\u5927\u962a\u5e02\u5317\u533a\u6885\u75302-2-2","address2":"20F","tel1":"06","tel2":"1111","tel3":"1111","fax1":"06","fax2":"9999","fax3":"9999","siteUrl":"http:\/\/www.queserser.co.jp\/","medium":"|1|","pdf":"|1|","created_at":"2015-07-27 18:23:28","updated_at":null},{"memberId":5275,"area_id":2,"status_id":3,"reference_id":4,"productname":"yonascare","picaluminum":"","companyName":"ddd","name":"Test Queserser","job":null,"relationJob":null,"subJobCategory":null,"busyo":null,"eMail":null,"password":null,"zip1":null,"zip2":null,"pref":null,"prefStr":null,"address1":"zzzzzz","address2":null,"tel1":null,"tel2":null,"tel3":null,"fax1":null,"fax2":null,"fax3":null,"siteUrl":null,"medium":null,"pdf":null,"created_at":"2018-07-06 06:42:20","updated_at":"2018-07-06 06:42:20"},{"memberId":5279,"area_id":2,"status_id":1,"reference_id":1,"productname":"yonascare","picaluminum":"hello","companyName":"yonas3","name":"Test Queserser","job":null,"relationJob":1,"subJobCategory":6,"busyo":null,"eMail":null,"password":null,"zip1":null,"zip2":null,"pref":null,"prefStr":null,"address1":"zzzzzz","address2":null,"tel1":null,"tel2":null,"tel3":null,"fax1":null,"fax2":null,"fax3":null,"siteUrl":null,"medium":null,"pdf":null,"created_at":"2018-07-06 06:57:12","updated_at":"2018-07-06 07:04:51"}]"

To the following data format (Laravel Query format)

Collection {#403 ▼
  #items: array:3 [▼
    0 => MemberMaster {#399 ▼
      #table: "memberMasternewdata"
      #primaryKey: "memberId"
      #fillable: array:10 [▶]
      #connection: null
      #keyType: "int"
      #perPage: 15
      +incrementing: true
      +timestamps: true
      #attributes: array:31 [▼
        "memberId" => 9
        "area_id" => 2
        "status_id" => 0
        "reference_id" => 0
        "productname" => null
        "picaluminum" => null
        "companyName" => "てすと"
        "name" => "てすと会社"
        "job" => 3
        "relationJob" => null
        "subJobCategory" => null
        "busyo" => null
        "eMail" => "y_ikegami@queserser.co.jp"
        "password" => "queserser"
        "zip1" => "530"
        "zip2" => "0001"
        "pref" => 27
        "prefStr" => "大阪府"
        "address1" => "大阪市北区梅田2-2-2"
        "address2" => "20F"
        "tel1" => "06"
        "tel2" => "1111"
        "tel3" => "1111"
        "fax1" => "06"
        "fax2" => "9999"
        "fax3" => "9999"
        "siteUrl" => "http://www.queserser.co.jp/"
        "medium" => "|1|"
        "pdf" => "|1|"
        "created_at" => "2015-07-27 18:23:28"
        "updated_at" => null
      ]
      #original: array:31 [▶]
      #relations: []
      #hidden: []
      #visible: []
      #appends: []
      #guarded: array:1 [▶]
      #dates: []
      #dateFormat: null
      #casts: []
      #touches: []
      #observables: []
      #with: []
      #morphClass: null
      +exists: true
      +wasRecentlyCreated: false
    }
    1 => MemberMaster {#400 ▶}
    2 => MemberMaster {#401 ▶}
  ]
}

Thank you in advance!!

via Chebli Mohamed