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15. Tempdata CodeIgniter In some situations, where you want to remove data stored in session after some specific time-period, this can be done using tempdata functionality in CodeIgniter. Add Tempdata To add data as tempdata, we have to use mark_as_tempdata() function. This function takes two argument items or items to be stored as tempdata and the expiration time for those items are as shown below. // 'item' will be erased after 300 seconds(5 minutes) $this->session->mark_as_temp('item',300); You can also pass an array to store multiple data. All the items stored below will be expired after 300 seconds. $this->session->mark_as_temp(array('item','item2'),300); You can also set different expiration time for each item as shown below. // 'item' will be erased after 300 seconds, while 'item2' // will do so after only 240 seconds $this->session->mark_as_temp(array( 'item'=>300, 'item2'=>240 )); Retrieve Tempdata We can retrieve the tempdata using tempdata() function. This function assures that you are getting only tempdata and not any other data. Look at the example given below to see how to retrieve tempdata. tempdata() function will take one argument of the item to be fetched. $this->session->tempdata('item'); If you omit the argument, then you can retrieve all the existing tempdata. Remove Tempdata Tempdata is removed automatically after its expiration time but if you want to remove tempdata before that, then you can do as shown below using the unset_tempdata() function, which takes one argument of the item to be removed. $this->session->unset_tempdata('item'); 61
CodeIgniter Example Create a class called Tempdata_controller.php and save it in application/controller/Tempdata_controller.php. } redirect('tempdata'); Create a file called tempdata_view.php and save it in application/views/tempdata_view.php CodeIgniter Tempdata Example Temp Data Example 62
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CodeIgniter About the Tutorial Code
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CodeIgniter Updating a Record .....
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1. CodeIgniter - Overview CodeIgnit
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2. Installing CodeIgniter CodeIgnit
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CodeIgniter Directory Structure The
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CodeIgniter and classes. It is reco
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5. CodeIgniter - Basic Concepts Cod
Page 16 and 17: CodeIgniter Visiting the third URI
Page 18 and 19: CodeIgniter The following flowchart
Page 20 and 21: CodeIgniter As shown in the above f
Page 22 and 23: CodeIgniter Reserved Routes $route[
Page 24 and 25: 6. CodeIgniter - Configuration Code
Page 26 and 27: CodeIgniter ); You can simply switc
Page 28 and 29: 7. Working with Database CodeIgnite
Page 30 and 31: CodeIgniter Finally, the update() f
Page 32 and 33: CodeIgniter function __construct(){
Page 34 and 35: CodeIgniter parent::__construct();
Page 36 and 37: CodeIgniter echo form_close(); ?>
Page 38 and 39: 8. CodeIgniter - Libraries CodeIgni
Page 40 and 41: CodeIgniter Create New Library Whil
Page 42 and 43: 9. Error 9. Handling CodeIgniter Ma
Page 44 and 45: 10. File Uploading CodeIgniter Usin
Page 46 and 47: CodeIgniter if ( ! $this->upload->d
Page 48 and 49: 11. Sending Email CodeIgniter Sendi
Page 50 and 51: CodeIgniter Syntax Parameters Retur
Page 52 and 53: CodeIgniter $this->email->subject('
Page 54 and 55: 12. Form Validation CodeIgniter Val
Page 56 and 57: CodeIgniter } } Add the following l
Page 58 and 59: CodeIgniter less_than less_than_equ
Page 60 and 61: 13. Session Management CodeIgniter
Page 62 and 63: CodeIgniter $this->load->library('s
Page 64 and 65: CodeIgniter //redirect to home page
Page 68 and 69: CodeIgniter Click Here to add temp
Page 70 and 71: 16. Cookie Management CodeIgniter C
Page 72 and 73: CodeIgniter } public function delet
Page 74 and 75: CodeIgniter Syntax html_escape($var
Page 76 and 77: 18. Page Caching CodeIgniter Cachin
Page 78 and 79: 19. Page Redirection CodeIgniter Wh
Page 80 and 81: 20. Application Profiling CodeIgnit
Page 82 and 83: 21. Benchmarking CodeIgniter Settin
Page 84 and 85: CodeIgniter The above URL will enab
Page 86 and 87: CodeIgniter public function index()
Page 88 and 89: 23. Internationalization CodeIgnite
Page 90 and 91: CodeIgniter //Load the view file $t
Page 92 and 93: CodeIgniter Copy the below given co
Page 94 and 95: CodeIgniter $this->db->query($sql,
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