php - How to display pdf file inside iframe from mysql database -


hello im begginer in php , code igniter im working on project , im having hard time doing it. im trying display pdf file inside iframe,which stored in database here code:

controller: 

$data['data_pdf'] = $this->home_model->pdfmanuscript();

model:

public function pdfmanuscript(){     $query = $this->db->query("select * tblscipdf pdf_dateuploaded=( select max(pdf_dateuploaded) tblscipdf featured='1') ");     return $query->result_array(); }

views:

<iframe  style="border:1px solid #666ccc" title="pdf in i-frame"  src="<?php echo base_url('pdf/').$data_pdf["pdf_name"]; ?>"  frameborder="1" scrolling="auto" height="900" width="850" align="middle"> </iframe>


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