CodeIgniter

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CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications. CodeIgniter was created by EllisLab, and is now a project of the British Columbia Institute of Technology. Developers who would like to learn the art of developing websites using CodeIgniter. CodeIgniter Features Some of the important features of CodeIgniter are listed below 1. Model-View-Controller Based System 2. Extremely Light Weight 3. Full Featured database classes with support for several platforms. 4. Query Builder Database Support 5. Form and Data Validation 6. Security and XSS Filtering 7. Session Management 8. Email Sending Class. Supports Attachments, HTML/Text email, multiple protocols (sendmail, SMTP, and Mail) and more. 9. Image Manipulation Library (cropping, resizing, rotating, etc.). Supports GD, ImageMagick, and NetPBM 10. File Uploading Class 11. FTP Class 12. Localization 13. Pagination 14. Data Encryption 15. Benchmarking 16. Full Page Caching 17. Error Logging 18. Application Profiling 19. Calendaring Class 20. User Agent Class 21. Zip Encoding Class 22. Template Engine Class 23. Trackback Class 24. XML-RPC Library 25. Unit Testing Class 26. Search-engine Friendly URLs 27. Flexible URI Routing 28. Support for Hooks and Class Extensions 29. Large library of “helper” functions, and so on....

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Latest Asked Question

Q : codeigniter and ckfinder csrf exclude uris

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Q : this session set flashdata codeignitor

A : Hi use this code //How to set flash data $this->session->set_flashdata('alert', 'This is my message'); // After that you need to used redirect function goes on previous page redirect("students/studentList"); // How to get flash data on view $this->session->flashdata('alert')

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Q : how to set and get cookies in code igniter

A : $cookie_name = "UserDetails"; $cookie_value = json_encode($sessionData); setcookie($cookie_name, $cookie_value, time() + (86400) * (30 * 365), "/");

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Q : Codeigniter $this->db->affected_rows() always returns 1

A : Use this Sample code : $update = array( 'advance_paid' => $data['TXNAMOUNT'], 'payment_mode' => 'PONLINE', 'txn_id' => $data['BANKTXNID'] ); $this->db->where("id",$data['Id']); $query = $this->db->update("payment_table",$update); if($this->db->affected_rows()){ return true; }else{ return false; } Yes $this->db->affected_rows() always returns TRUE in CodeIgniter.

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Q : How to delete data From database Using CodeIgniter?

A :

Use follow code for delete operation in CodeIgniter.
StudentController class
function delete_student(){
   $student_id = $this->input->get("studentId");
   $result = $this->StudentModel->delete_student($student_id);
   if($result)
        redirect(base_url."StudentController/studentlist");
}

StudentModel class
//function to Delete selected record from table name students   
function delete_student($id){
    $this->db->where("student_id", $id);
    $this->db->delete("students");  
    if($this->db->affected_rows()){
      return true; 
    }
  }
 }

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Q : get current class name codeigniter

A : get current class name codeigniter //get current class using following code $this->router->fetch_class(); //get current class method using $this->router->fetch_method();

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Q : Redirect to referrer url in codeigniter

A :

$this->load->library("user_agent");
if ($this->agent->is_referral())
{
    echo $this->agent->referrer();
}

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Q : how to get ip address in codeigniter?

A : use this to get user ip address $this->input->ip_address();

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Q : Update query increment field plus 1 codeigniter

A :

$this->db->where("id", $id);
$this->db->set("set_row", "`set_row`+ 1", FALSE);
$this->db->update("article");

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Q : codeigniters where and or where

A : You can modify just the two lines: $this->db->where('q.question_cat_id',$cat_id); $this->db->or_where('q.question_sub_id',$cat_id); replace with

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Q : How to Destroy all sessions and cookies in codeIgnitor?

A :

Distroy cookies in php
if (isset($_COOKIE['remember_user'])) {
    unset($_COOKIE['Hello']);
    unset($_COOKIE['HelloTest1']);
    setcookie('Hello', null, -1, '/');
    setcookie('HelloTest1', null, -1, '/');
    return true;
} else {
    return false;
}

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