Skip to content
 
 

Repository files navigation


<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  
  <title>The MIT License (MIT) &mdash; CodeIgniter4 4.0.0-dev documentation</title>
  

  
  
    <link rel="shortcut icon" href="_static/ci-icon.ico"/>
  

  
  <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'>

  
  
    

  

  
  
    <link rel="stylesheet" href="_static/css/citheme.css" type="text/css" />
  

  
    <link rel="top" title="CodeIgniter4 4.0.0-dev documentation" href="index.html"/> 

  
  <script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>

</head>

<body class="wy-body-for-nav" role="document">

  <div id="nav">
  <div id="nav_inner">
    
    
    
      <div id="pulldown-menu" class="ciNav">
        <ul>
<li class="toctree-l1"><a class="reference internal" href="intro/index.html">Welcome to CodeIgniter4</a><ul>
<li class="toctree-l2"><a class="reference internal" href="intro/index.html">Welcome to CodeIgniter4</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/requirements.html">Server Requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/credits.html">Credits</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/psr.html">PSR Compliance</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="installation/index.html">Installation</a><ul>
<li class="toctree-l2"><a class="reference internal" href="installation/downloads.html">Downloading CodeIgniter</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/index.html">Installation</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/upgrading.html">Upgrading From a Previous Version</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/troubleshooting.html">Troubleshooting</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/local_server.html">Local Development Server</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="tutorial/index.html">Tutorial</a><ul>
<li class="toctree-l2"><a class="reference internal" href="tutorial/static_pages.html">Static pages</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/news_section.html">News section</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/create_news_items.html">Create news items</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/conclusion.html">Conclusion</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="concepts/index.html">CodeIgniter4 Overview</a><ul>
<li class="toctree-l2"><a class="reference internal" href="concepts/structure.html">Application Structure</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/mvc.html">Models, Views, and Controllers</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/autoloader.html">Autoloading Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/services.html">Services</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/http.html">Working With HTTP Requests</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/security.html">Security Guidelines</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="general/index.html">General Topics</a><ul>
<li class="toctree-l2"><a class="reference internal" href="general/configuration.html">Working With Configuration Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/urls.html">CodeIgniter URLs</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/controllers.html">Controllers</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/views.html">Views</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_cells.html">View Cells</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_renderer.html">View Renderer</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_parser.html">View Parser</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/helpers.html">Helper Functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/core_classes.html">Creating Core System Classes</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/hooks.html">Hooks - Extending the Framework Core</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/common_functions.html">Global Functions and Constants</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/routing.html">URI Routing</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/filters.html">Controller Filters</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/logging.html">Logging Information</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/errors.html">Error Handling</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/debugging.html">Debugging Your Application</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/caching.html">Web Page Caching</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/cli.html">Running via the CLI</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/cli_commands.html">Custom CLI Commands</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/modules.html">Code Modules</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/managing_apps.html">Managing your Applications</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/environments.html">Handling Multiple Environments</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/testing.html">Testing</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="libraries/index.html">Library Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="libraries/api_responses.html">API Response Trait</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/benchmark.html">Benchmarking</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/caching.html">Caching Driver</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/cli.html">CLI Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/content_negotiation.html">Content Negotiation</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/localization.html">Localization</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/curlrequest.html">CURLRequest Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/incomingrequest.html">IncomingRequest Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/message.html">HTTP Messages</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/pagination.html">Pagination</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/request.html">Request Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/response.html">HTTP Responses</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/security.html">Security Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/sessions.html">Session Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/throttler.html">Throttler</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/typography.html">Typography</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/uploaded_files.html">Working with Uploaded Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/uri.html">Working with URIs</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/validation.html">Validation</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="database/index.html">Database Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="database/examples.html">Quick Start: Usage Examples</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/configuration.html">Database Configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/connecting.html">Connecting to a Database</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/queries.html">Running Queries</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/results.html">Generating Query Results</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/helpers.html">Query Helper Functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/query_builder.html">Query Builder Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/transactions.html">Transactions</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/metadata.html">Getting MetaData</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/call_function.html">Custom Function Calls</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/model.html">Using CodeIgniter&#8217;s Model</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/forge.html">Database Manipulation with Database Forge</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/migration.html">Database Migrations</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/seeds.html">Database Seeding</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/hooks.html">Database Hooks</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="helpers/index.html">Helpers</a><ul>
<li class="toctree-l2"><a class="reference internal" href="helpers/cookie_helper.html">Cookie Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/filesystem_helper.html">Filesystem Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/form_helper.html">Form Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/html_helper.html">HTML Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/inflector_helper.html">Inflector Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/number_helper.html">Number Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/text_helper.html">Text Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/url_helper.html">URL Helper</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="contributing/index.html">Contributing to CodeIgniter</a><ul>
<li class="toctree-l2"><a class="reference internal" href="contributing/guidelines.html">Contribution Guidelines</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/workflow.html">Contribution Workflow</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/signing.html">Contribution Signing</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/roadmap.html">CodeIgniter4 Roadmap</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/internals.html">CodeIgniter Internals Overview</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/documentation.html">Writing CodeIgniter Documentation</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/styleguide.html">PHP Style Guide</a></li>
<li class="toctree-l2"><a class="reference internal" href="DCO.html">Developer&#8217;s Certificate of Origin 1.1</a></li>
</ul>
</li>
</ul>

      </div>
    
      
  </div>
</div>
<div id="nav2">
  <a href="#" id="openToc">
    <img src="data:image/jpeg;base64,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" title="Toggle Table of Contents" alt="Toggle Table of Contents" />
  </a>
</div>

  <div class="wy-grid-for-nav">

    
    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
      <div class="wy-side-nav-search">
        
          <a href="index.html" class="fa fa-home"> CodeIgniter4</a>
        
        
<div role="search">
  <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
    <input type="text" name="q" placeholder="Search docs" />
    <input type="hidden" name="check_keywords" value="yes" />
    <input type="hidden" name="area" value="default" />
  </form>
</div>
      </div>

      <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
        
          
          
              <ul>
<li class="toctree-l1"><a class="reference internal" href="intro/index.html">Welcome to CodeIgniter4</a><ul>
<li class="toctree-l2"><a class="reference internal" href="intro/index.html">Welcome to CodeIgniter4</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/requirements.html">Server Requirements</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/credits.html">Credits</a></li>
<li class="toctree-l2"><a class="reference internal" href="intro/psr.html">PSR Compliance</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="installation/index.html">Installation</a><ul>
<li class="toctree-l2"><a class="reference internal" href="installation/downloads.html">Downloading CodeIgniter</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/index.html">Installation</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/upgrading.html">Upgrading From a Previous Version</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/troubleshooting.html">Troubleshooting</a></li>
<li class="toctree-l2"><a class="reference internal" href="installation/local_server.html">Local Development Server</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="tutorial/index.html">Tutorial</a><ul>
<li class="toctree-l2"><a class="reference internal" href="tutorial/static_pages.html">Static pages</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/news_section.html">News section</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/create_news_items.html">Create news items</a></li>
<li class="toctree-l2"><a class="reference internal" href="tutorial/conclusion.html">Conclusion</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="concepts/index.html">CodeIgniter4 Overview</a><ul>
<li class="toctree-l2"><a class="reference internal" href="concepts/structure.html">Application Structure</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/mvc.html">Models, Views, and Controllers</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/autoloader.html">Autoloading Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/services.html">Services</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/http.html">Working With HTTP Requests</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts/security.html">Security Guidelines</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="general/index.html">General Topics</a><ul>
<li class="toctree-l2"><a class="reference internal" href="general/configuration.html">Working With Configuration Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/urls.html">CodeIgniter URLs</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/controllers.html">Controllers</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/views.html">Views</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_cells.html">View Cells</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_renderer.html">View Renderer</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/view_parser.html">View Parser</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/helpers.html">Helper Functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/core_classes.html">Creating Core System Classes</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/hooks.html">Hooks - Extending the Framework Core</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/common_functions.html">Global Functions and Constants</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/routing.html">URI Routing</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/filters.html">Controller Filters</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/logging.html">Logging Information</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/errors.html">Error Handling</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/debugging.html">Debugging Your Application</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/caching.html">Web Page Caching</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/cli.html">Running via the CLI</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/cli_commands.html">Custom CLI Commands</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/modules.html">Code Modules</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/managing_apps.html">Managing your Applications</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/environments.html">Handling Multiple Environments</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="general/testing.html">Testing</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="libraries/index.html">Library Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="libraries/api_responses.html">API Response Trait</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/benchmark.html">Benchmarking</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/caching.html">Caching Driver</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/cli.html">CLI Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/content_negotiation.html">Content Negotiation</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/localization.html">Localization</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/curlrequest.html">CURLRequest Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/incomingrequest.html">IncomingRequest Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/message.html">HTTP Messages</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/pagination.html">Pagination</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/request.html">Request Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/response.html">HTTP Responses</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/security.html">Security Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/sessions.html">Session Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/throttler.html">Throttler</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/typography.html">Typography</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/uploaded_files.html">Working with Uploaded Files</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/uri.html">Working with URIs</a></li>
<li class="toctree-l2"><a class="reference internal" href="libraries/validation.html">Validation</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="database/index.html">Database Reference</a><ul>
<li class="toctree-l2"><a class="reference internal" href="database/examples.html">Quick Start: Usage Examples</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/configuration.html">Database Configuration</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/connecting.html">Connecting to a Database</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/queries.html">Running Queries</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/results.html">Generating Query Results</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/helpers.html">Query Helper Functions</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/query_builder.html">Query Builder Class</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/transactions.html">Transactions</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/metadata.html">Getting MetaData</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/call_function.html">Custom Function Calls</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/model.html">Using CodeIgniter&#8217;s Model</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/forge.html">Database Manipulation with Database Forge</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/migration.html">Database Migrations</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/seeds.html">Database Seeding</a></li>
<li class="toctree-l2"><a class="reference internal" href="database/hooks.html">Database Hooks</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="helpers/index.html">Helpers</a><ul>
<li class="toctree-l2"><a class="reference internal" href="helpers/cookie_helper.html">Cookie Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/filesystem_helper.html">Filesystem Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/form_helper.html">Form Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/html_helper.html">HTML Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/inflector_helper.html">Inflector Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/number_helper.html">Number Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/text_helper.html">Text Helper</a></li>
<li class="toctree-l2"><a class="reference internal" href="helpers/url_helper.html">URL Helper</a></li>
</ul>
</li>
</ul>
<ul>
<li class="toctree-l1"><a class="reference internal" href="contributing/index.html">Contributing to CodeIgniter</a><ul>
<li class="toctree-l2"><a class="reference internal" href="contributing/guidelines.html">Contribution Guidelines</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/workflow.html">Contribution Workflow</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/signing.html">Contribution Signing</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/roadmap.html">CodeIgniter4 Roadmap</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/internals.html">CodeIgniter Internals Overview</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/documentation.html">Writing CodeIgniter Documentation</a></li>
<li class="toctree-l2"><a class="reference internal" href="contributing/styleguide.html">PHP Style Guide</a></li>
<li class="toctree-l2"><a class="reference internal" href="DCO.html">Developer&#8217;s Certificate of Origin 1.1</a></li>
</ul>
</li>
</ul>

          
        
      </div>
      &nbsp;
    </nav>

    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">

      
      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
        <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
        <a href="index.html">CodeIgniter4</a>
      </nav>


      
      <div class="wy-nav-content">
        <div class="rst-content">
          <div role="navigation" aria-label="breadcrumbs navigation">
  <ul class="wy-breadcrumbs">
    <li><a href="index.html">Docs</a> &raquo;</li>
      
    <li>The MIT License (MIT)</li>
    <li class="wy-breadcrumbs-aside">
      
    </li>
    <div style="float:right;margin-left:5px;" id="closeMe">
      <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" />
    </div>
  </ul>
  <hr/>
</div>
          <div role="main" class="document">
            
  <div class="section" id="the-mit-license-mit">
<h1>The MIT License (MIT)<a class="headerlink" href="#the-mit-license-mit" title="Permalink to this headline">¶</a></h1>
<p>Copyright (c) 2014 - 2017, British Columbia Institute of Technology</p>
<p>Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the &#8220;Software&#8221;), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:</p>
<p>The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.</p>
<p>THE SOFTWARE IS PROVIDED &#8220;AS IS&#8221;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.</p>
</div>


          </div>
          <footer>
  

  <hr/>

  <div role="contentinfo">
    <p>
        &copy; Copyright 2014 - 2017, British Columbia Institute of Technology.
       Last updated on Jan 03, 2017.
    </p>
  </div>

  Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
  
</footer>
        </div>
      </div>

    </section>

  </div>
  


  

    <script type="text/javascript">
        var DOCUMENTATION_OPTIONS = {
            URL_ROOT:'./',
            VERSION:'4.0.0-dev',
            COLLAPSE_INDEX:false,
            FILE_SUFFIX:'.html',
            HAS_SOURCE:  false
        };
    </script>
      <script type="text/javascript" src="_static/jquery.js"></script>
      <script type="text/javascript" src="_static/underscore.js"></script>
      <script type="text/javascript" src="_static/doctools.js"></script>

  

  
  
    <script type="text/javascript" src="_static/js/theme.js"></script>
  

  
  
  <script type="text/javascript">
      jQuery(function () {
          SphinxRtdTheme.StickyNav.enable();
      });
  </script>
   

</body>
</html>

About

Open Source PHP Framework (originally from EllisLab)

Stars

Watchers

Forks

Releases

Packages

Contributors

Languages