save the json post value to send to another function in php -


i have form when submit send 2 places 1 php function , other json, reason there tag fields have there values json.

the problem json array values going different table in mysql , needs id other php function. , gave me undefined index: elements

code html:

here form go function cadastro_fornecedor()

<form id='form_c_fornecedor' action="<?php echo base_url().'admin/cadastro_fornecedor';?>" method="post" enctype="multipart/form-data">    <button type="submit" class="btn btn-primary">adicionar</button> </form>

code js:

here form when submit colect values im elements var , post them get_value_fornecedor() , working fine until here.

$('#form_c_fornecedor').bind('submit', function (d) {     var elements = $('#try').taghandler('gettags');      $.post("<?php echo base_url().'admin/get_value_fornecedor/'; ?>",{elements: json.stringify(elements)}); });

function get_value_fornecedor:

the function received value success.

public function get_value_fornecedor(){     $elements = json_decode($_post['elements'], true);     return $elements; }

function cadastro_fornecedor:

here receiving error undefined index: elements thats mean $elements value did not pass function.

public function cadastro_fornecedor(){     $elements = $this->get_value_fornecedor();      $inputall= $this->input->post();     $this->form_validation->set_rules('nome_fantasia', 'nome fantasia', 'required');     if ($this->form_validation->run() == false){       $this->session->set_flashdata('error', 'o campo nome é obrigatório.');     }else{         if($_post){             $data_cad = date('y-m-d');             $data=array('desc_entidade' =>$inputall['desc_entidade'],                         'data_cad'      =>$data_cad                     );             $id= $this->cake->c_fornecedor($data);              if(!empty($elements)){                 ($i = 0; $i < count($elements); $i++){                     $data_produtos=array(   'fornecedor_id'    =>$id,                                             'produto_tag'      =>$elements[$i]                                     );                     $this->cake->c_produto($data_produtos);                 }             }             $this->session->set_flashdata('success', 'o campo nome é obrigatório.');             //redirect(base_url().'admin/c_fornecedor');         }     } }

problem posting data method get_value_fornecedor not saving anywhere, make use of codeigniter session

first have load session library. 

$this->load->library("session");

you can load in auto load, think better.

to set session

$this->session->set_userdata("session_name","value");

to extract data

$this->session->userdata("session_name");

you can rewrite function below

public function get_value_fornecedor() {     /* ajax call saving data inside session key somedata*/     if(isset($_post['elements']))     {             $this->session->set_userdata("somedata",$_post['elements']);     }else     {            /* accessing saved data */             $elements_saved = $this->session->userdata("somedata");              if($elements_saved)             {                   $elements = json_decode($elements_saved, true);                   return $elements;              }     } }

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