Codeigniter 3 官方文档

User guide: General

  • Alternate PHP Syntax for View Files
  • Auto-loading Resources
  • CodeIgniter URLs
  • Common Functions
  • Compatibility Functions
  • Controllers
  • Creating Ancillary Classes
  • Creating Core System Classes
  • Creating Drivers
  • Creating Libraries
  • Error Handling
  • General Topics
  • Handling Multiple Environments
  • Helper Functions
  • Hooks - Extending the Framework Core
  • Managing your Applications
  • Models
  • PHP Style Guide
  • Profiling Your Application
  • Reserved Names
  • Running via the CLI
  • Security
  • URI Routing
  • Using CodeIgniter Drivers
  • Using CodeIgniter Libraries
  • Views
  • Web Page Caching

    • String

  • alternator()
  • increment_string()
  • quotes_to_entities()
  • random_string()
  • reduce_double_slashes()
  • reduce_multiples()
  • repeater()
  • String Helper
  • strip_quotes()
  • strip_slashes()
  • trim_slashes()

    • URL

  • anchor()
  • anchor_popup()
  • auto_link()
  • base_url()
  • current_url()
  • index_page()
  • mailto()
  • prep_url()
  • redirect()
  • safe_mailto()
  • site_url()
  • uri_string()
  • URL Helper
  • url_title()

    • User guide: Overview

  • Application Flow Chart
  • CodeIgniter at a Glance
  • CodeIgniter Features
  • CodeIgniter Overview
  • Design and Architectural Goals
  • Getting Started With CodeIgniter
  • Model-View-Controller

    • Array

  • Array Helper
  • element()
  • elements()
  • random_element()

    • Functions

  • array_column()
  • config_item()
  • function_usable()
  • get_instance()
  • get_mimes()
  • hash_equals()
  • hash_pbkdf2()
  • hex2bin()
  • html_escape()
  • is_cli()
  • is_https()
  • is_php()
  • is_really_writable()
  • log_message()
  • mb_strlen()
  • mb_strpos()
  • mb_substr()
  • password_get_info()
  • password_hash()
  • password_needs_rehash()
  • password_verify()
  • remove_invisible_characters()
  • set_status_header()
  • show_404()
  • show_error()

    • Text

  • ascii_to_entities()
  • character_limiter()
  • convert_accented_characters()
  • ellipsize()
  • highlight_code()
  • highlight_phrase()
  • Text Helper
  • word_censor()
  • word_limiter()
  • word_wrap()

    • Typography

  • auto_typography()
  • CI_Typography
  • CI_Typography::auto_typography()
  • CI_Typography::format_characters()
  • CI_Typography::nl2br_except_pre()
  • entity_decode()
  • nl2br_except_pre()
  • Typography Class
  • Typography Helper

    • Benchmarking

  • Benchmarking Class
  • CI_Benchmark
  • CI_Benchmark::elapsed_time()
  • CI_Benchmark::mark()
  • CI_Benchmark::memory_usage()

    • HTML

  • br()
  • doctype()
  • heading()
  • HTML Helper
  • img()
  • link_tag()
  • meta()
  • nbs()
  • ol()
  • ul()

    • Number

  • byte_format()
  • Number Helper

    • Caching

  • Caching Driver
  • CI_Cache
  • CI_Cache::cache_info()
  • CI_Cache::clean()
  • CI_Cache::decrement()
  • CI_Cache::delete()
  • CI_Cache::get()
  • CI_Cache::get_metadata()
  • CI_Cache::increment()
  • CI_Cache::is_supported()
  • CI_Cache::save()

    • Calendaring

  • Calendaring Class
  • CI_Calendar
  • CI_Calendar::adjust_date()
  • CI_Calendar::default_template()
  • CI_Calendar::generate()
  • CI_Calendar::get_day_names()
  • CI_Calendar::get_month_name()
  • CI_Calendar::get_total_days()
  • CI_Calendar::initialize()
  • CI_Calendar::parse_template()

    • Inflector

  • camelize()
  • humanize()
  • Inflector Helper
  • is_countable()
  • plural()
  • singular()
  • underscore()

    • CAPTCHA

  • CAPTCHA Helper
  • create_captcha()

    • Shopping Cart

  • CI_Cart
  • CI_Cart::contents()
  • CI_Cart::destroy()
  • CI_Cart::get_item()
  • CI_Cart::has_options()
  • CI_Cart::insert()
  • CI_Cart::product_options()
  • CI_Cart::remove()
  • CI_Cart::total()
  • CI_Cart::total_items()
  • CI_Cart::update()
  • Shopping Cart Class

    • Config

  • CI_Config
  • CI_Config::base_url()
  • CI_Config::item()
  • CI_Config::load()
  • CI_Config::set_item()
  • CI_Config::site_url()
  • CI_Config::slash_item()
  • CI_Config::system_url()
  • Config Class

    • Database

  • CI_DB_driver
  • CI_DB_driver::affected_rows()
  • CI_DB_driver::cache_delete()
  • CI_DB_driver::cache_delete_all()
  • CI_DB_driver::cache_off()
  • CI_DB_driver::cache_on()
  • CI_DB_driver::cache_set_path()
  • CI_DB_driver::call_function()
  • CI_DB_driver::close()
  • CI_DB_driver::compile_binds()
  • CI_DB_driver::count_all()
  • CI_DB_driver::db_connect()
  • CI_DB_driver::db_pconnect()
  • CI_DB_driver::db_select()
  • CI_DB_driver::db_set_charset()
  • CI_DB_driver::display_error()
  • CI_DB_driver::elapsed_time()
  • CI_DB_driver::escape()
  • CI_DB_driver::escape_identifiers()
  • CI_DB_driver::escape_like_str()
  • CI_DB_driver::escape_str()
  • CI_DB_driver::field_data()
  • CI_DB_driver::field_exists()
  • CI_DB_driver::initialize()
  • CI_DB_driver::insert_string()
  • CI_DB_driver::is_write_type()
  • CI_DB_driver::last_query()
  • CI_DB_driver::list_fields()
  • CI_DB_driver::list_tables()
  • CI_DB_driver::platform()
  • CI_DB_driver::primary()
  • CI_DB_driver::protect_identifiers()
  • CI_DB_driver::query()
  • CI_DB_driver::reconnect()
  • CI_DB_driver::simple_query()
  • CI_DB_driver::table_exists()
  • CI_DB_driver::total_queries()
  • CI_DB_driver::trans_complete()
  • CI_DB_driver::trans_off()
  • CI_DB_driver::trans_start()
  • CI_DB_driver::trans_status()
  • CI_DB_driver::trans_strict()
  • CI_DB_driver::update_string()
  • CI_DB_driver::version()
  • CI_DB_forge
  • CI_DB_forge::add_column()
  • CI_DB_forge::add_field()
  • CI_DB_forge::add_key()
  • CI_DB_forge::create_database()
  • CI_DB_forge::create_table()
  • CI_DB_forge::drop_column()
  • CI_DB_forge::drop_database()
  • CI_DB_forge::drop_table()
  • CI_DB_forge::modify_column()
  • CI_DB_forge::rename_table()
  • CI_DB_query_builder
  • CI_DB_query_builder::count_all_results()
  • CI_DB_query_builder::dbprefix()
  • CI_DB_query_builder::delete()
  • CI_DB_query_builder::distinct()
  • CI_DB_query_builder::empty_table()
  • CI_DB_query_builder::flush_cache()
  • CI_DB_query_builder::from()
  • CI_DB_query_builder::get()
  • CI_DB_query_builder::get_compiled_delete()
  • CI_DB_query_builder::get_compiled_insert()
  • CI_DB_query_builder::get_compiled_select()
  • CI_DB_query_builder::get_compiled_update()
  • CI_DB_query_builder::get_where()
  • CI_DB_query_builder::group_by()
  • CI_DB_query_builder::group_end()
  • CI_DB_query_builder::group_start()
  • CI_DB_query_builder::having()
  • CI_DB_query_builder::insert()
  • CI_DB_query_builder::insert_batch()
  • CI_DB_query_builder::join()
  • CI_DB_query_builder::like()
  • CI_DB_query_builder::limit()
  • CI_DB_query_builder::not_group_start()
  • CI_DB_query_builder::not_like()
  • CI_DB_query_builder::offset()
  • CI_DB_query_builder::order_by()
  • CI_DB_query_builder::or_group_start()
  • CI_DB_query_builder::or_having()
  • CI_DB_query_builder::or_like()
  • CI_DB_query_builder::or_not_group_start()
  • CI_DB_query_builder::or_not_like()
  • CI_DB_query_builder::or_where()
  • CI_DB_query_builder::or_where_in()
  • CI_DB_query_builder::or_where_not_in()
  • CI_DB_query_builder::replace()
  • CI_DB_query_builder::reset_query()
  • CI_DB_query_builder::select()
  • CI_DB_query_builder::select_avg()
  • CI_DB_query_builder::select_max()
  • CI_DB_query_builder::select_min()
  • CI_DB_query_builder::select_sum()
  • CI_DB_query_builder::set()
  • CI_DB_query_builder::set_dbprefix()
  • CI_DB_query_builder::set_insert_batch()
  • CI_DB_query_builder::set_update_batch()
  • CI_DB_query_builder::start_cache()
  • CI_DB_query_builder::stop_cache()
  • CI_DB_query_builder::truncate()
  • CI_DB_query_builder::update()
  • CI_DB_query_builder::update_batch()
  • CI_DB_query_builder::where()
  • CI_DB_query_builder::where_in()
  • CI_DB_query_builder::where_not_in()
  • CI_DB_result
  • CI_DB_result::custom_result_object()
  • CI_DB_result::custom_row_object()
  • CI_DB_result::data_seek()
  • CI_DB_result::field_data()
  • CI_DB_result::first_row()
  • CI_DB_result::free_result()
  • CI_DB_result::last_row()
  • CI_DB_result::list_fields()
  • CI_DB_result::next_row()
  • CI_DB_result::num_fields()
  • CI_DB_result::num_rows()
  • CI_DB_result::previous_row()
  • CI_DB_result::result()
  • CI_DB_result::result_array()
  • CI_DB_result::result_object()
  • CI_DB_result::row()
  • CI_DB_result::row_array()
  • CI_DB_result::row_object()
  • CI_DB_result::set_row()
  • CI_DB_result::unbuffered_row()
  • CI_DB_utility
  • CI_DB_utility::backup()
  • CI_DB_utility::csv_from_result()
  • CI_DB_utility::database_exists()
  • CI_DB_utility::list_databases()
  • CI_DB_utility::optimize_database()
  • CI_DB_utility::optimize_table()
  • CI_DB_utility::repair_table()
  • CI_DB_utility::xml_from_result()
  • Connecting to your Database
  • Custom Function Calls
  • Database Caching Class
  • Database Configuration
  • Database Forge Class
  • Database Metadata
  • Database Quick Start: Example Code
  • Database Reference
  • Database Utility Class
  • DB Driver Reference
  • Generating Query Results
  • Queries
  • Query Builder Class
  • Query Helper Methods
  • Transactions

    • Email

  • CI_Email
  • CI_Email::attach()
  • CI_Email::attachment_cid()
  • CI_Email::bcc()
  • CI_Email::cc()
  • CI_Email::clear()
  • CI_Email::from()
  • CI_Email::message()
  • CI_Email::print_debugger()
  • CI_Email::reply_to()
  • CI_Email::send()
  • CI_Email::set_alt_message()
  • CI_Email::set_header()
  • CI_Email::subject()
  • CI_Email::to()
  • Email Class
  • Email Helper
  • send_email()
  • valid_email()

    • Encrypt

  • CI_Encrypt
  • CI_Encrypt::decode()
  • CI_Encrypt::encode()
  • CI_Encrypt::encode_from_legacy()
  • CI_Encrypt::set_cipher()
  • CI_Encrypt::set_mode()
  • Encrypt Class

    • Encryption

  • CI_Encryption
  • CI_Encryption::create_key()
  • CI_Encryption::decrypt()
  • CI_Encryption::encrypt()
  • CI_Encryption::hkdf()
  • CI_Encryption::initialize()
  • Encryption Library

    • Form Validation

  • CI_Form_validation
  • CI_Form_validation::error()
  • CI_Form_validation::error_array()
  • CI_Form_validation::error_string()
  • CI_Form_validation::has_rule()
  • CI_Form_validation::reset_validation()
  • CI_Form_validation::run()
  • CI_Form_validation::set_data()
  • CI_Form_validation::set_error_delimiters()
  • CI_Form_validation::set_message()
  • CI_Form_validation::set_rules()
  • Form Validation

    • FTP

  • CI_FTP
  • CI_FTP::changedir()
  • CI_FTP::chmod()
  • CI_FTP::close()
  • CI_FTP::connect()
  • CI_FTP::delete_dir()
  • CI_FTP::delete_file()
  • CI_FTP::download()
  • CI_FTP::list_files()
  • CI_FTP::mirror()
  • CI_FTP::mkdir()
  • CI_FTP::move()
  • CI_FTP::rename()
  • CI_FTP::upload()
  • FTP Class

    • Image Manipulation

  • CI_Image_lib
  • CI_Image_lib::clear()
  • CI_Image_lib::crop()
  • CI_Image_lib::display_errors()
  • CI_Image_lib::initialize()
  • CI_Image_lib::resize()
  • CI_Image_lib::rotate()
  • CI_Image_lib::watermark()
  • Image Manipulation Class

    • Input

  • CI_Input
  • CI_Input::cookie()
  • CI_Input::get()
  • CI_Input::get_post()
  • CI_Input::get_request_header()
  • CI_Input::input_stream()
  • CI_Input::ip_address()
  • CI_Input::is_ajax_request()
  • CI_Input::is_cli_request()
  • CI_Input::method()
  • CI_Input::post()
  • CI_Input::post_get()
  • CI_Input::request_headers()
  • CI_Input::server()
  • CI_Input::set_cookie()
  • CI_Input::user_agent()
  • CI_Input::valid_ip()
  • Input Class

    • Language

  • CI_Lang
  • CI_Lang::line()
  • CI_Lang::load()
  • lang()
  • Language Class
  • Language Helper

    • Loader

  • CI_Loader
  • CI_Loader::add_package_path()
  • CI_Loader::clear_vars()
  • CI_Loader::config()
  • CI_Loader::database()
  • CI_Loader::dbforge()
  • CI_Loader::dbutil()
  • CI_Loader::driver()
  • CI_Loader::file()
  • CI_Loader::get_package_paths()
  • CI_Loader::get_var()
  • CI_Loader::get_vars()
  • CI_Loader::helper()
  • CI_Loader::is_loaded()
  • CI_Loader::language()
  • CI_Loader::library()
  • CI_Loader::model()
  • CI_Loader::remove_package_path()
  • CI_Loader::vars()
  • CI_Loader::view()
  • Loader Class

    • Migrations

  • CI_Migration
  • CI_Migration::current()
  • CI_Migration::error_string()
  • CI_Migration::find_migrations()
  • CI_Migration::latest()
  • CI_Migration::version()
  • Migrations Class

    • Output

  • CI_Output
  • CI_Output::append_output()
  • CI_Output::cache()
  • CI_Output::enable_profiler()
  • CI_Output::get_content_type()
  • CI_Output::get_header()
  • CI_Output::get_output()
  • CI_Output::set_content_type()
  • CI_Output::set_header()
  • CI_Output::set_output()
  • CI_Output::set_profiler_sections()
  • CI_Output::set_status_header()
  • CI_Output::_display()
  • Output Class

    • Pagination

  • CI_Pagination
  • CI_Pagination::create_links()
  • CI_Pagination::initialize()
  • Pagination Class

    • Template Parser

  • CI_Parser
  • CI_Parser::parse()
  • CI_Parser::parse_string()
  • CI_Parser::set_delimiters()
  • Template Parser Class

    • Security

  • CI_Security
  • CI_Security::entity_decode()
  • CI_Security::get_csrf_hash()
  • CI_Security::get_csrf_token_name()
  • CI_Security::get_random_bytes()
  • CI_Security::sanitize_filename()
  • CI_Security::xss_clean()
  • do_hash()
  • encode_php_tags()
  • sanitize_filename()
  • Security Class
  • Security Helper
  • strip_image_tags()
  • xss_clean()

    • Session

  • CI_Session
  • CI_Session::all_userdata()
  • CI_Session::flashdata()
  • CI_Session::get_flash_keys()
  • CI_Session::get_temp_keys()
  • CI_Session::has_userdata()
  • CI_Session::keep_flashdata()
  • CI_Session::mark_as_flash()
  • CI_Session::mark_as_temp()
  • CI_Session::sess_destroy()
  • CI_Session::sess_regenerate()
  • CI_Session::set_flashdata()
  • CI_Session::set_tempdata()
  • CI_Session::set_userdata()
  • CI_Session::tempdata()
  • CI_Session::unmark_flash()
  • CI_Session::unmark_temp()
  • CI_Session::unset_userdata()
  • CI_Session::userdata()
  • CI_Session::__get()
  • CI_Session::__set()
  • Session Library

    • HTML Table

  • CI_Table
  • CI_Table::add_row()
  • CI_Table::clear()
  • CI_Table::generate()
  • CI_Table::make_columns()
  • CI_Table::set_caption()
  • CI_Table::set_empty()
  • CI_Table::set_heading()
  • CI_Table::set_template()
  • HTML Table Class

    • Trackback

  • CI_Trackback
  • CI_Trackback::convert_ascii()
  • CI_Trackback::convert_xml()
  • CI_Trackback::data()
  • CI_Trackback::display_errors()
  • CI_Trackback::extract_urls()
  • CI_Trackback::get_id()
  • CI_Trackback::limit_characters()
  • CI_Trackback::process()
  • CI_Trackback::receive()
  • CI_Trackback::send()
  • CI_Trackback::send_error()
  • CI_Trackback::send_success()
  • CI_Trackback::set_error()
  • CI_Trackback::validate_url()
  • Trackback Class

    • Unit Testing

  • CI_Unit_test
  • CI_Unit_test::active()
  • CI_Unit_test::report()
  • CI_Unit_test::result()
  • CI_Unit_test::run()
  • CI_Unit_test::set_template()
  • CI_Unit_test::set_test_items()
  • CI_Unit_test::use_strict()
  • Unit Testing Class

    • File Uploading

  • CI_Upload
  • CI_Upload::data()
  • CI_Upload::display_errors()
  • CI_Upload::do_upload()
  • CI_Upload::initialize()
  • File Uploading Class

    • URI

  • CI_URI
  • CI_URI::assoc_to_uri()
  • CI_URI::rsegment()
  • CI_URI::rsegment_array()
  • CI_URI::ruri_string()
  • CI_URI::ruri_to_assoc()
  • CI_URI::segment()
  • CI_URI::segment_array()
  • CI_URI::slash_rsegment()
  • CI_URI::slash_segment()
  • CI_URI::total_rsegments()
  • CI_URI::total_segments()
  • CI_URI::uri_string()
  • CI_URI::uri_to_assoc()
  • URI Class

    • User Agent

  • CI_User_agent
  • CI_User_agent::accept_charset()
  • CI_User_agent::accept_lang()
  • CI_User_agent::agent_string()
  • CI_User_agent::browser()
  • CI_User_agent::charsets()
  • CI_User_agent::is_browser()
  • CI_User_agent::is_mobile()
  • CI_User_agent::is_referral()
  • CI_User_agent::is_robot()
  • CI_User_agent::languages()
  • CI_User_agent::mobile()
  • CI_User_agent::parse()
  • CI_User_agent::platform()
  • CI_User_agent::referrer()
  • CI_User_agent::robot()
  • CI_User_agent::version()
  • User Agent Class

    • XML-RPC and XML-RPC Server

  • CI_Xmlrpc
  • CI_Xmlrpc::display_error()
  • CI_Xmlrpc::display_response()
  • CI_Xmlrpc::initialize()
  • CI_Xmlrpc::method()
  • CI_Xmlrpc::request()
  • CI_Xmlrpc::send_error_message()
  • CI_Xmlrpc::send_request()
  • CI_Xmlrpc::server()
  • CI_Xmlrpc::timeout()
  • XML-RPC and XML-RPC Server Classes

    • Zip Encoding

  • CI_Zip
  • CI_Zip::add_data()
  • CI_Zip::add_dir()
  • CI_Zip::archive()
  • CI_Zip::clear_data()
  • CI_Zip::download()
  • CI_Zip::get_zip()
  • CI_Zip::read_dir()
  • CI_Zip::read_file()
  • Zip Encoding Class

    • User guide: Tutorial

  • Conclusion
  • Create news items
  • News section
  • Static pages
  • Tutorial

    • Cookie

  • Cookie Helper
  • delete_cookie()
  • get_cookie()
  • set_cookie()

    • Date

  • Date Helper
  • date_range()
  • days_in_month()
  • gmt_to_local()
  • human_to_unix()
  • local_to_gmt()
  • mdate()
  • mysql_to_unix()
  • nice_date()
  • now()
  • standard_date()
  • timespan()
  • timezones()
  • timezone_menu()
  • unix_to_human()

    • File

  • delete_files()
  • File Helper
  • get_dir_file_info()
  • get_filenames()
  • get_file_info()
  • get_mime_by_extension()
  • octal_permissions()
  • read_file()
  • symbolic_permissions()
  • write_file()

    • Directory

  • Directory Helper
  • directory_map()

    • Download

  • Download Helper
  • force_download()

    • User guide: Installation

  • Downloading CodeIgniter
  • Installation Instructions
  • Troubleshooting
  • Upgrading From a Previous Version

    • Form

  • Form Helper
  • form_button()
  • form_checkbox()
  • form_close()
  • form_dropdown()
  • form_error()
  • form_fieldset()
  • form_fieldset_close()
  • form_hidden()
  • form_input()
  • form_label()
  • form_multiselect()
  • form_open()
  • form_open_multipart()
  • form_password()
  • form_prep()
  • form_radio()
  • form_reset()
  • form_submit()
  • form_textarea()
  • form_upload()
  • set_checkbox()
  • set_radio()
  • set_select()
  • set_value()
  • validation_errors()

    • Smiley

  • get_clickable_smileys()
  • parse_smileys()
  • Smiley Helper
  • smiley_js()

    • Javascript

  • Javascript Class

    • Path

  • Path Helper
  • set_realpath()

    • XML

  • XML Helper
  • xml_convert()

    • Index

  • index

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