Codeigniter 3 documentation. Welcome to CodeIgniter; Installation Instructions.

Codeigniter 3 documentation CodeIgniter is a PHP full-stack web framework that is light, fast, flexible and secure. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes GitHub¶. php file extension or the “helper” part. The expiration is set in seconds, which will be added to the current time. Rather than using the standard “query string” approach to URLs that is synonymous with dynamic systems, CodeIgniter uses a segment-based approach: Portable ciphers ¶. 6 or newer to be used, but it should be compatible with PHP 5. Tutorial¶. Step 1: Update your CodeIgniter files ¶ Contributing to CodeIgniter. 8 CodeIgniter v3. 9 CodeIgniter v3. When a model is loaded it does NOT connect automatically to your database. It is an Application Development Framework - a toolkit - for people who build web sites using PHP. php file with a static one. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes In CodeIgniter, this can be done by setting the ENVIRONMENT constant, which is more fully described on the security page. Beyond simplicity, a major benefit to using the Query Builder features is that it allows you to create database independent applications, since the query syntax is generated by each database adapter. 12¶ Before performing an update you should take your site offline by replacing the index. That’s it! If you’re new to CodeIgniter, please read the Getting Started section of the User Guide to begin learning how to build dynamic PHP applications. CodeIgniter also supports “tempdata”, or session data with a specific expiration time. Getting Started; CodeIgniter at a Glance; Supported Features; Application Flow Chart; Model-View-Controller; Architectural Goals; Tutorial. Installation This function will strip tags from a string, split it at a defined maximum length, and insert an ellipsis. 1. Portable ciphers ¶. php file. 1; General Topics Item Description; file_name: Name of the file that was uploaded, including the filename extension: file_type: File MIME type identifier: file_path: Absolute server path to the file GitHub¶. By default it is assumed that you only intend to use CodeIgniter to manage one application, which you will build in your application/ directory. Use this with care, and make sure to benchmark your application, as a point can come where disk I/O will negate positive gains by caching. e. g. There are many reasons for running CodeIgniter from the command-line, but they are not always obvious. CodeIgniter’s Pagination class is very easy to use, and it is 100% customizable, either dynamically or via stored preferences. Similarly to flashdata, tempdata variables are regular session vars that are marked in a specific way under the ‘__ci_vars’ key (again, don’t touch Dec 31, 2024 · Build Your First Application . php, you would do this: Notes. In addition, the benchmark is always started the moment the framework is invoked, and ended by the output class right before sending the final view to the browser, enabling a very accurate timing of the entire system execution to be shown. It is possible, however, to have multiple sets of applications that share a single CodeIgniter installation, or even to rename or relocate your application directory. Upgrading from 3. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Optionally, you can have CodeIgniter load environment-specific configuration files. 0 to 3. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes CodeIgniter’s Hooks feature provides a means to tap into and modify the inner workings of the framework without hacking the core files. Downloading CodeIgniter; Installation Instructions; Upgrading From a Previous Contributing to CodeIgniter. Our goal for CodeIgniter is maximum performance, capability, and flexibility in the smallest, lightest possible package. The index. Item Description; file_name: Name of the file that was uploaded, including the filename extension: file_type: File MIME type identifier: file_path: Absolute server path to the file GitHub¶. Checks if the input is a correctly formatted e-mail address. If the URI does not contain a value in your default, an array index will be set to that name, with a value of NULL. Dec 31, 2024 · Welcome to CodeIgniter4 . x. Public Git access is available at GitHub. x to be compatible with the Encrypt library in CodeIgniter 2. In the above code you’ll notice a pair of variables: {blog_entries} data… {/blog_entries}. Beginning with version 2. A platform combines multiple tutorials, projects, documentations, questions and answers for developers CodeIgniter comes with a full-featured and very fast abstracted database class that supports both traditional structures and Query Builder patterns. The above method is an alias of result_object(). 6 Our goal for CodeIgniter is maximum performance, capability, and flexibility in the smallest, lightest possible package. In MySQL, you’ll need to be running InnoDB or BDB table types rather than the more common MyISAM. 1 The following pages describe the broad concepts behind Writing CodeIgniter Documentation¶ CodeIgniter uses Sphinx to generate its documentation in a variety of formats, using reStructuredText to handle the formatting. CodeIgniter is a toolkit for people who build web applications using PHP. 6. This is the platform-independent base DB implementation class. It is not meant to be a full implementation of what is commonly called internationalization and localization . When CodeIgniter runs it follows a specific execution process, diagramed in the Application Flow page. Git is a distributed version control system. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Dec 31, 2024 · Build Your First Application . Build Your First Application. 6+. Remapping Method Calls ¶ As noted above, the second segment of the URI typically determines which method in the controller gets called. In a route, the array key contains the URI to be matched, while the array value contains the destination it should be re-routed to. If running an old PHP version, you may need password_compat. There are 21 different preferences available to tailor how your email messages are sent. The first parameter is the string to ellipsize, the second is the number of characters in the final string. Only the img_path and img_url are required. The Router examines the HTTP request to determine what should be done with it. It’s not intended to be a full-blown test suite but rather a simple mechanism to evaluate your code to determine if it is producing the correct data type and result. Run your cron-jobs without needing to use wget or curl Make your cron-jobs inaccessible from being loaded in the URL by checking the return value of is_cli() . 7 so all code supplied must stick to this requirement. Ion Auth 3 needs CodeIgniter 3 and PHP 5. Replace all files and directories in your “system” folder and replace your index. It should work on 5. 1; General Topics CodeIgniter 3. 1 The following pages describe the broad concepts behind CodeIgniter Overview. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries. If you submit the form you should simply see the form reload. In the above example, if the literal word “product” is found in the first segment of the URL, and a number is found in the second segment, the “catalog” class and the “product_lookup” method are instead used. It will optionally let you add form attributes and hidden input fields, and will always add the accept-charset attribute based on the charset value in your config file. 1; General Topics CodeIgniter is an Application Development Framework - a toolkit - for people who build web sites using PHP. Static Pages; News Section; Overview & General Topics CodeIgniter URLs¶ By default, URLs in CodeIgniter are designed to be search-engine and human friendly. Transactions¶. If you find that no matter what you put in your URL only your default page is loading, it might be that your server does not support the REQUEST_URI variable needed to serve search-engine friendly URLs. The Cart Class permits items to be added to a session that stays active while a user is browsing your site. Under normal circumstances you won’t even notice the Output class since it works transparently without your intervention. 11 (Current version) CodeIgniter v3. This tutorial covers routing, form validation, database queries and more. 1¶ Before performing an update you should take your site offline by replacing the index. Each topic builds on the previous one, and includes code examples that you are encouraged to try. Quick Start: Usage Examples Tutorial¶. As an added bonus, CodeIgniter permits your libraries to extend native classes if you simply need to add some functionality to an existing library. If PHP 5. Unlike caching from the Output Class, the driver file-based caching allows for pieces of view files to be cached. Next, read each of the General Topics pages in order. Download Sources Translations User Guide Connecting to your Database ¶. In order to help out, CodeIgniter uses a series of function, method, class and variable names in its operation. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Writing CodeIgniter Documentation¶ CodeIgniter uses Sphinx to generate its documentation in a variety of formats, using reStructuredText to handle the formatting. 1 The following pages describe the broad concepts behind Contributing to CodeIgniter. 11 to 3. This class will not be called directly. Since you haven’t told the Form Validation class to validate anything yet, it returns FALSE (boolean false) by default. 0. Similarly to flashdata, tempdata variables are regular session vars that are marked in a specific way under the ‘__ci_vars’ key (again, don’t touch Given a file and path, returns (optionally) the name, path, size and date modified information attributes for a file. Setting Email Preferences ¶. 0 and later. Following is a list of reserved names that cannot be used. This version is in maintenance, receiving mostly just security updates, and the current version is 3. Profiling Your Application¶. You might put together your own word library that you can draw randomly from. 3. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Static pages¶. 3 to 3. Find tutorials, installation instructions, library and database references, and more. If you are familiar with Markdown or Textile, you will quickly grasp reStructuredText. Although CodeIgniter is quite fast, the amount of dynamic information you display in your pages will correlate directly to the server resources, memory, and processing cycles utilized, which affect your page load speeds. , the one in application/config/), then tries to load the configuration files for the current environment. Contributing to CodeIgniter. 7. You can also pass a string to result() which represents a class to instantiate for each result object (note: this class must be loaded) CodeIgniter Features¶ Features in and of themselves are a very poor way to judge an application since they tell you nothing about the user experience, or how intuitively or intelligently it is designed. It instead provides a more simplified interface. Please note that while every effort is made to keep this code base functional, we cannot guarantee the functionality of code taken from the develop branch. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core CodeIgniter always loads the global config file first (i. This helps prevent numbering conflicts when working in a team environment, and is the preferred scheme in CodeIgniter 3. 4¶ Before performing an update you should take your site offline by replacing the index. Creates an opening form tag with a base URL built from your config preferences. Only the name and value are required. 10 CodeIgniter v3. If any modifications were made to your index. default/value : to generate a default value in the field definition. 8 API documentation with instant search, offline support, keyboard shortcuts, mobile version, and more. CodeIgniter Features¶ Features in and of themselves are a very poor way to judge an application since they tell you nothing about the user experience, or how intuitively or intelligently it is designed. These items can be retrieved and displayed in a standard “shopping cart” format, allowing the user to update the quantity or remove items from the cart. The Language class in CodeIgniter is meant to provide an easy and lightweight way to support multiplelanguages in your application. CodeIgniter’s database abstraction allows you to use transactions with databases that support transaction-safe table types. Because of this, some names cannot be used by a developer. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to CodeIgniter URLs¶ By default, URLs in CodeIgniter are designed to be search-engine and human friendly. 13. Step 1: Update your CodeIgniter files ¶ CodeIgniter is an Application Framework¶ CodeIgniter is a toolkit for people who build web applications using PHP. See parameters, return types, and examples for each function. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Creates an opening form tag with a base URL built from your config preferences. 4 (and above) functions or features are used then there must be a fallback for PHP 5. If left blank all tables will be exported. Welcome to CodeIgniter; Installation Instructions. Similarly to flashdata, tempdata variables are regular session vars that are marked in a specific way under the ‘__ci_vars’ key (again, don’t touch Preference Default Value Options Description; tables: empty array: None: An array of tables you want backed up. If the database server’s idle timeout is exceeded while you’re doing some heavy PHP lifting (processing an image, for instance), you should consider pinging the server by using the reconnect() method before sending further queries, which can gracefully keep the connection alive or re-establish it. Downloading CodeIgniter CodeIgniter v3. Note: This tutorial assumes you’ve downloaded CodeIgniter and installed the framework in your development environment. Web Page Caching¶. Email Class¶. This tutorial is intended to introduce you to the CodeIgniter framework and the basic principles of MVC architecture. 1; General Topics Creates an opening form tag with a base URL built from your config preferences. Connecting to your Database ¶. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Step 1: Update your CodeIgniter files¶. (This was the numbering scheme prior to CodeIgniter 3. The focus is on readability and user friendliness. 3 is how this auto-detection works, and more specifically it now falls back to the server’s IP address instead of the hostname requested by the client. 1; Using the above example, day numbers 3, 7, 13, and 26 Feb 5, 2015 · The recommended way to automate API documentation is to generate an OpenAPI specification file from your source code that can be used by other tools such as editors, viewers, live testing, etc. Lastly, if a corresponding value is not found for a given key (if there is an odd number of URI segments) the value will be set to NULL. General Topics. 5 to 3. This new method takes care of inserting the news item into the database. CodeIgniter 3 Documentation Mirror. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes CodeIgniter Overview. php they will need to be made fresh in this new one. That’s because you haven’t set up any validation rules yet. 7 CodeIgniter v3. CodeIgniter lets you cache your pages in order to achieve maximum performance. This means you are not obligated to place all of your configuration files in an environment folder. Note that it doesn’t actually prove that the address will be able to receive mail, but simply that it is a validly formed address. The database functions offer clear, simple syntax. The Profiler Class will display benchmark results, queries you have run, and $_POST data at the bottom of your pages. 7 as well, but we strongly advise you NOT to run such old versions of PHP, because of potential security and performance issues. Being custom implementations, these functions will also have some set of dependencies on their own, but are still useful if your PHP setup doesn’t Contributing to CodeIgniter. You can either set them manually as described here, or automatically via preferences stored in your config file, described below: The captcha function requires the GD image library. For example, when you use the Loader class to load a view file, it’s automatically passed to the Output class, which will be called automatically by CodeIgniter at the end of system execution. . This may be useful for managing things like differing API keys across multiple environments. CodeIgniter provides a set of compatibility functions that enable you to use functions what are otherwise natively available in PHP, but only in higher versions or depending on a certain extension. CodeIgniter’s robust Email Class supports the following features: Multiple Protocols: Mail, Sendmail, and SMTP; TLS and SSL Encryption for SMTP CodeIgniter recommends PHP 5. SELECT * FROM some_table WHERE id IN (3, 6) AND status = 'live' AND author = 'Rick' The secondary benefit of using binds is that the values are automatically escaped, producing safer queries. It will show you how a basic CodeIgniter application is constructed in step-by-step fashion. php serves as the front controller, initializing the base resources needed to run CodeIgniter. 3, Email Class¶. ; If a word is not supplied, the function will generate a random ASCII string. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes There are many reasons for running CodeIgniter from the command-line, but they are not always obvious. Writing CodeIgniter Documentation¶ CodeIgniter uses Sphinx to generate its documentation in a variety of formats, using reStructuredText to handle the formatting. Shopping Cart Class¶. You don’t have to remember to manually escape data; the engine does it automatically for you. php file and set this variable: Contributing to CodeIgniter. After the value expires, or the session expires or is deleted, the value is automatically removed. CodeIgniter can be told to load a default controller when a URI is not present, as will be the case when only your site root URL is requested. CodeIgniter 3 is the legacy version of the framework, intended for use with PHP 5. Where name is the file name of the helper, without the . 1; General Topics. If a cache file exists, it is sent directly to the browser, bypassing the normal system execution. Learn how to use CodeIgniter 3, a powerful PHP framework for web development. The first thing you’re going to do is set up a controller to handle static pages. Learn how to use CodeIgniter, a PHP framework for web development, with clear and thorough documentation. Quick Start: Usage Examples Troubleshooting¶. CodeIgniter is an Application Framework¶ CodeIgniter is a toolkit for people who build web applications using PHP. Static pages; News section; Create news items; Conclusion; Contributing to CodeIgniter. Rather than using the standard “query string” approach to URLs that is synonymous with dynamic systems, CodeIgniter uses a segment-based approach: For more information, please refer to the “Reserved Routes” section of the URI Routing documentation. Do not include the time, but rather only the number of seconds from now that you wish the cookie to be val One of the changes in CodeIgniter 3. Second parameter allows you to explicitly declare what information you want returned. Because MCrypt and OpenSSL (also called drivers throughout this document) each support different sets of encryption algorithms and often implement them in different ways, our Encryption library is designed to use them in a portable fashion, or in other words - it enables you to use them interchangeably, at least for the ciphers supported by both drivers. Enables you to re-encode data that was originally encrypted with CodeIgniter 1. In a case like this, the entire chunk of data between these pairs would be repeated multiple times, corresponding to the number of rows in the “blog_entries” element of the parameters array. Learn how to create a basic news application with CodeIgniter, a PHP framework that follows MVC architecture. 6¶ Before performing an update you should take your site offline by replacing the index. Additionally, the following key/values can be used: unsigned/true : to generate “UNSIGNED” in the field definition. This information can be useful during development in order to help with debugging and optimization. The following options for connecting are available to you: You can connect using the standard database methods described here, either from within your Controller class or your Model class. The first step is to install CodeIgniter, then read all the topics in the Introduction section of the Table of Contents. Step 1: Update your CodeIgniter files ¶ One of the changes in CodeIgniter 3. File-based Caching ¶. To specify a default controller, open your application/config/routes. CodeIgniter’s Unit Test class is quite simple, consisting of an evaluation function and two result functions. To meet this goal we are committed to benchmarking, re-factoring, and simplifying at every step of the development process, rejecting anything that doesn’t further the stated objective. ) Timestamp: each migration is numbered using the timestamp when the migration was created, in YYYYMMDDHHIISS format (e. Or you can even replace native libraries just by placing identically named versions in your application/libraries directory. Therefore, if you’ve ever relied on auto-detection, it will change how your website works now. 20121031100537 ). Step 1: Update your CodeIgniter files ¶ CodeIgniter does not require that each database table be its own class file. The third line contains a new function, url_title(). CodeIgniter offers a small footprint, exceptional performance, broad compatibility, and simple interface. Learn how to use the globally defined functions in CodeIgniter for various purposes, such as checking PHP version, file writability, config items, headers, and more. Static Pages; News Section; Overview & General Topics DB Driver Reference¶. CodeIgniter comes with a full-featured and very fast abstracted database class that supports both traditional structures and Query Builder patterns. 1; General Topics CodeIgniter recommends PHP 5. This is described in more detail in the environment section of the Config Class documentation. Writing CodeIgniter Documentation; Developer’s Certificate of Origin 1. ``The run()`` method only returns TRUE if it has successfully applied your rules without any of them failing. CodeIgniter’s robust Email Class supports the following features: Multiple Protocols: Mail, Sendmail, and SMTP; TLS and SSL Encryption for SMTP Reconnecting / Keeping the Connection Alive¶. CodeIgniter URLs; Controllers; Reserved Names; Views; Models; Helpers; Using CodeIgniter Libraries; Creating Libraries; Using CodeIgniter Drivers; Creating Drivers; Creating Core System Classes; Creating Ancillary Classes Contributing to CodeIgniter. CodeIgniter Overview. For example, to load the URL Helper file, which is named url_helper. It is only necessary to use this method if you have encrypted data stored permanently such as in a file or database and are on a server that supports Mcrypt. Rather, the adapter class for the specific database will extend and instantiate it. CodeIgniter does not require that each database table be its own class file. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to Creates an opening form tag with a base URL built from your config preferences. To delete a cookie set it with the expiration blank. This function - provided by the URL helper - strips down the string you pass it, replacing all spaces by dashes (-) and makes sure everything is in lowercase characters. Pagination Class¶. qfzizo ril bkbff rbozy ixrnae lefo xbtm eeavio rhkhermo szctnw