codeigniter_tutorial

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20. Application Profiling CodeIgniter When building a web application, we are very much concerned about the performance of the website in terms of how much time the controller took to execute and how much memory is used. Not only the performance, but we also need to see the insights of data like POST data, data of database queries, session data etc. for debugging purpose while developing some application. CodeIgniter has made this job easier for us by profiling an application. Enable Profiling To enable profiling of your application, simply execute the command given below in any of the method of your controller. $this->output->enable_profiler(TRUE); The report of the profiling can be seen at the bottom of the page after enabling it. Disable Profiling To disable profiling of your application, simply execute the command given below in any of the method of your controller. $this->output->enable_profiler(FALSE); Enable / Disable Profiler Section Profiling can be done on section basis. You can enable or disable profiling of a section by setting a Boolean value TRUE or FALSE. If you want to set profiling on the application then you can do in a file located in application/config/profiler.php For example, the following command will enable profiling queries for the whole application. $config['queries'] = TRUE; In the following table, the key is the parameter, which can be set in the config array to enable or disable a particular profile. Key Description Default benchmarks Elapsed time of Benchmark points and total TRUE execution time config CodeIgniterConfig variables TRUE controller_info The Controller class and method requested TRUE get Any GET data passed in the request TRUE http_headers The HTTP headers for the current request TRUE 75
CodeIgniter memory_usage Amount of memory consumed by the current TRUE request, in bytes post Any POST data passed in the request TRUE queries Listing of all database queries executed, including TRUE execution time uri_string The URI of the current request TRUE session_data Data stored in the current session TRUE query_toggle_count The number of queries after which the query block will default to hidden. 25 The profiler set in the file in application/config/profiler.php can be overridden by using the set_profiler_sections() function in controllers as shown below. $sections = array( ); 'config' => TRUE, 'queries' => TRUE $this->output->set_profiler_sections($sections); 76
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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
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CodeIgniter Visiting the third URI
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CodeIgniter The following flowchart
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CodeIgniter As shown in the above f
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CodeIgniter Reserved Routes $route[
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6. CodeIgniter - Configuration Code
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CodeIgniter ); You can simply switc
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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 $this->load->library('s
Page 64 and 65: CodeIgniter //redirect to home page
Page 66 and 67: 15. Tempdata CodeIgniter In some si
Page 68 and 69: CodeIgniter Click Here to add temp
Page 70 and 71: 16. Cookie Management CodeIgniter C
Page 72 and 73: CodeIgniter } public function delet
Page 74 and 75: CodeIgniter Syntax html_escape($var
Page 76 and 77: 18. Page Caching CodeIgniter Cachin
Page 78 and 79: 19. Page Redirection CodeIgniter Wh
Page 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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