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Join Usage Analysis of CI framework database queries and ci framework join usage This article describes the join usage of the CI framework database query. We will share this with you for your reference. The details are as follows: Use each ID in Table A to query the information of this ID in the people table. The statement is as follows: $ This-> db-> from ('A

CI source code analysis (III)-DB transactions, ci source database transactions(0) UsageYou can use the method provided by the system: $ this-> db-> trans_start (); // start the transaction $ this-> db-> query (); // execute sqls $ this-> db-> trans_complete (); // end the transaction (do not worry about rollback) if! $ This-> db-> trans_status do something; // handle the errorYou can also handle commit and

CI controller calls internal methods and loads corresponding templates. ci Controller When I open the link: http: // localhost/3g/index/open/a/B? After from = timeline, determine whether the from in the link is equal to timeline. If it is equal to timeline, call the timeline method in the Controller and load the timeline. php template. class Index extends CI_Controller { function __construct() {

CI framework file upload and image processing Usage Analysis, ci File Upload This document describes the CI framework file upload and image processing usage. We will share this with you for your reference. The details are as follows: // List page banner image public function edit_list_page_banner ($ category_id = "") {$ category_id = empty ($ category_id )? $ _ P

The CI framework optimizes file upload and multi-File Upload methods, and the ci framework optimizes file upload. This article provides an example of how to optimize file upload and multi-File Upload using the CI framework. We will share this with you for your reference. The details are as follows: I have been studying the Codeigniter framework recently, when wri

Detailed description of CI framework form verification instances and ci framework form instances This article describes the CI framework form verification method. We will share this with you for your reference. The details are as follows: 1. Automatic output function of form header information (view) 2. Set verification rules (controller) 3. error message corre

Examples of common CI framework function encapsulation and ci framework Encapsulation This example describes common function encapsulation in the CI framework. We will share this with you for your reference. The details are as follows: /*** Encapsulate the query function */public function get_what ($ table = '', $ where = array (), $ fields = '*') {if (''= $ tabl

CI: how to configure multi-database access and ci Database Access This example describes how to configure multi-database access for CI. We will share this with you for your reference. The details are as follows: 1. Modify the datebase. php file: $db['XXX']['pconnect'] = TRUE; Modify: $db['XXX']['pconnect'] = FALSE; 2. Copy the original database link definition, a

Some errors and solution notes encountered in the CI framework, ci frameworkPs: continuously modify and update based on experience. You are welcome to point out an error ~1,An uncaught Exception was encounteredType: Exception Message: Session: Configured save path '/usr/share/nginx/html/terminal_php/application/../sesssion_files' is not writable by the PHP process. Filename:/usr/share/nginx/html/terminal_ph

Connection Table query in the CI framework, and CI framework $ This-> db-> select ('goods. id, Goods. title, Goods. cate_id, goodscategory. cname'); // The queried Field $ This-> db-> where (array ("Goods. id" => 69, 'goodscategory. cname' => '2013'); // query Condition $ This-> db-> from ('goods '); // connects the table's master table $ This-> db-> join ('goodscategory ', 'goodscategory. id = Goods. c

Ciphpjavascript On the Internet to read some of the PHP to JavaScript to pass the parameters of the problem, the use of Ajax technology, in the PHP side is basically the echo json_encoded method, and requires PHP files to clean, I want to develop in the CI framework, Allow controllers to pass some multidimensional arrays to the views, but a pass-through parameter will be displayed on the Web page using the Echo method. How can the data be transmi

As the name implies, loaders are loaded elements, when using CI, often loaded with: $this->load->library ()$this->load->view ()$this->load->model ()$this->load->database ()$this->load->helper ()$this->load->config ()$this->load->add_package_path () Copy Code code as follows: /** * Loader Class * * Users load views and files, common functions have model (), view (), library (), helper () * * Controller's good assistant, $this-gt;load

CI framework source code reading Note 4 guide file CodeIgniter. php is here, and finally enters the core of the CI framework. Since it is a "pilot" file, it is to guide user requests, parameters, and so on, so that user requests and data streams are separated by the correct line. For example, the user's request url: http://you.host.com/usr/reg The boot file is actually handed over to the reg method

Recently paid to buy Travis Ci,travis CI is interesting, not by project or user, but by the work process, such as the initial version is $129/month, a total of 2 work processes. In the case of a few projects, in addition to running unit testing, it is unavoidable to use more fully, so the time to build a set of Travis CI-based Android Automatic publishing workflo

CI session is not the original session, is my previous cookie based session, in addition, CI can be configured according to the user choose whether the session into the database, I like this function, there is "flash data" function, The flash data is only available for the next server request and is then automatically cleared. Common use methods are: $this->session->set_userdata (' some_name ', ' some_valu

CI is not the session of the original session, it is all of my previous cookie based session, in addition, CI can be selected according to the user configuration will be stored in the database session, I like this function, there is "flash data" function, Both flash out the data only to the next server request can, and then will be automatically cleared. Common use methods are: $this->session->set_userdata

Here, finally into the core of the CI framework. Since it is a "boot" file, it is the user's request, parameters and so on to do the corresponding guidance, let the user request and data flow according to the correct line position. For example, the user's request URL: Http://you.host.com/usr/reg The boot file is actually handed to the Usrcontroller controller in application for the Reg method to be processed. What did codeigniter.php do in this

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This article illustrates the method of CI framework integration smarty. Share to everyone for your reference, specific as follows: Because the function of CI is not very convenient, so we generally adopt integrated smarty way to make up the deficiency of CI. I have seen many CI integrated smarty tutorials on the inte

CI framework source code reading --------- Output. php lt ;? Phpif (! Defined (BASEPATH) exit (Nodirectscriptaccessallowed); *** CodeIgniter *** Anopensourceapplicationdevelopmentframeworkfo CI framework source code reading --------- Output. php _ Zlib_oc // if the output compression function is enabled in the configuration item, the value of $ this-> _ zlib_oc is on $ this-> _ zlib_oc = @ ini_get ('zli