ThinkPHP3.0 startup process

Example of a blog
Loading Project Entry File
D:\wamp\www\Examples\Blog\index.php
Defining constants
App_name,blog
App_path,d:\wamp\www\examples\blog\ (App_path is the directory where the project core framework file (LIB) is located)
Loading the thinkphp framework entry file
D:\wamp\www\ThinkPHP\ThinkPHP.php
Logging start run time, recording memory usage
Checks whether the item defines a constant App_path (if not defined as directory D:\wamp\www\ThinkPHP\)
Define constants according to App_path Runtime_path,d:\wamp\www\examples\blog\runtime\
Checks whether the item defines a constant App_debug,false (if not defined as false)
Checks whether the item defines a constant mode_name,~runtime.php (if not defined as ~runtime.php)
Defining Constants Runtime_file,d:\wamp\www\examples\blog\runtime\~runtime.php
If non-debugging coexist in runtime_file, load d:\wamp\www\examples\blog\runtime\~runtime.php directly
If you don't have this file right now,
Defining Constants Think_path,d:\wamp\www\thinkphp\thinkphp\
When you load a runtime file
D:\wamp\www\ThinkPHP\ThinkPHP\Common\runtime.php
Checks whether constant Think_path is defined, terminates the program without definition
Check the PHP version if it is less than 5.2.0 terminating program execution
Defining Constants Think_version,3.0
Defining Constants Think_release,20120323
Set Magic quotes based on PHP version
Defining Constants Magic_quotes_gpc,false
Defining Constants Is_cgi,0
Defining Constants is_win,1
Defining Constants Is_cli,0
Check if app_name is defined
PHP Non-CLI mode
Defining Constants _php_file_,/examples/blog/index.php
Defining Constants __root__,/examples
Defining constants Url_common, 0
Defining Constants Url_pathinfo, 1
Defining Constants Url_rewrite, 2
Defining Constants Url_compat, 3
Path settings you can redefine all path constants in the project or in the thinkphp portal file must end with/
Define Constants Core_path, d:\wamp\www\thinkphp/lib/
Define Constants Extend_path, d:\wamp\www\thinkphp/extend/
Define Constants Mode_path, d:\wamp\www\thinkphp/extend/mode/
Define Constants Engine_path, d:\wamp\www\thinkphp/extend/engine/
Define Constants Vendor_path, d:\wamp\www\thinkphp/extend/vendor/
Defining Constants Library_path,d:\wamp\www\thinkphp/extend/library/
Define Constants Common_path, d:\wamp\www\examples\blog\common/
Define Constants Lib_path, d:\wamp\www\examples\blog\lib/
Define Constants Conf_path, d:\wamp\www\examples\blog\conf/
Define Constants Lang_path, d:\wamp\www\examples\blog\lang/
Define Constants Tmpl_path, d:\wamp\www\examples\blog\tpl/
Define Constants Html_path, d:\wamp\www\examples\blog\html/
Define Constants Log_path, d:\wamp\www\examples\blog\runtime/logs/
Define Constants Temp_path, d:\wamp\www\examples\blog\runtime/temp/
Define Constants Data_path, d:\wamp\www\examples\blog\runtime/data/
Define Constants Cache_path, d:\wamp\www\examples\blog\runtime/cache/
Set Vendor_path directory to Include_path
Defines the initialization method, Build_app_dir,build_first_action,build_runtime_cache,build_tags_cache,check_runtime,load_runtime_file
Calling the Load_runtime_file method
Load the underlying function file common.php,d:\wamp\www\thinkphp\common/common.php
Loading core compilation files
d:\wamp\www\thinkphp/lib/core/think.class.php
d:\wamp\www\thinkphp/lib/core/thinkexception.class.php
d:\wamp\www\thinkphp/lib/core/behavior.class.php
Import alias configuration file into alias static variable $_alias, alias profile is d:\wamp\www\thinkphp\conf/alias.php
Create default project file structure and config.php and IndexAction.class.php files if directory d:\wamp\www\examples\blog\lib/does not exist
Check the project's cache directory d:\wamp\www\examples\blog\runtime/cache/if it exists. Creates a default file structure if it does not exist.
If it is debug mode, delete the runtime_file defined file
Log load file time
Executive Think::start ()
This method is in the core file d:\wamp\www\thinkphp/lib/core/think.class.php class.
Set error and exception handling, apperror,appexception
Register AutoLoad method, AutoLoad
Execute the Think::builapp method
Import the custom configuration file into the configuration static variable $_config, the custom configuration file is d:\wamp\www\thinkphp\conf/convention.php
If you define a constant Mode_name, import the corresponding schema profile to the variable d:\wamp\www\thinkphp/extend/mode/directory $mode
If the mode configuration profile has a config entry, it is imported into the configuration static variable $_config
Configure the project configuration Profile d:\wamp\www\examples\blog\conf/config.php import configuration static variable $_config
Load top-level language pack D:\wamp\www\ThinkPHP\Lang\zh-cn.php to language static variable $_lang
The system behavior is defined as follows:
If there is app_tags_on in the static configuration variable and is true, load the extends key of the variable $mode to the extends of the configuration static variable $_config, the variable $mode has no extends item,
Import the tags.php under the system configuration into the extends configured with the static variable $_config, d:\wamp\www\thinkphp\conf/tags.php
The project behavior is defined as follows:
Load variable $mode extends item to configure static variable $_config under tags, variable $mode no tags item,
Import the tags.php under project configuration to the tags that configure the static variable $_config, d:\wamp\www\examples\blog\conf/tags.php
Read the core compilation file as follows:
If the variable $mode defines the core, the key file is the key, and if there is no definition, the core file is
d:\wamp\www\thinkphp\common/functions.php
d:\wamp\www\thinkphp/lib/core/log.class.php
d:\wamp\www\thinkphp/lib/core/dispatcher.class.php
d:\wamp\www\thinkphp/lib/core/app.class.php
d:\wamp\www\thinkphp/lib/core/action.class.php
d:\wamp\www\thinkphp/lib/core/view.class.php
Save the array of the project core configuration definition d:\wamp\www\examples\blog\conf/core.php and the above file to the variable $list
Load the core file sequentially
In non-debug mode, these core files are written to the variable $compile
Load Project Public file d:\wamp\www\examples\blog\common/common.php
Write project public file to variable $compile when non-debug mode
Import the alias entry of the variable $mode to the aliased static variable $_alias
Non-debug mode writes the alias of the variable $mode to the variable $compile
Import the project alias file into the alias static variable $_alias,d:\wamp\www\examples\blog\conf/alias.php
Non-debug mode writes the alias of the project alias file to the variable $compile
If you are debugging the environment,
Import the System Debug configuration file into the configuration static variable $_config,d:\wamp\www\thinkphp\thinkphp\conf/debug.php
Remove the App_status configuration, load the project configuration Debug configuration file d:\wamp\www\examples\blog\conf/$status. php
If non-debug mode, call the Build_runtime_cache function to generate the compiled file
Basically will language Pack, config, alias, core function, defined variable, d:\wamp\www\thinkphp/lib/behavior/in the class defined by extends, generate a file ~runtime.php
Execute the App::run method
Instantiate behavior based on app_init items recorded by extends and tags
Setting the time zone
If you configure a static variable $_config has a Load_ext_file entry, the file is dynamically loaded in the d:\wamp\www\examples\blog\common/directory
If you configure a static variable $_config has a Load_ext_config entry, the file is dynamically loaded in the d:\wamp\www\examples\blog\conf/directory to a static variable $_config
Execute Dispatcher::d Ispatch method
There is too much code here ~ ~ Not understand
If grouping is set, the configuration and functions are loaded according to the grouping
Defining template-related constants
Instantiate behavior based on app_begin items recorded by extends and tags
The Session_options item session is initialized according to the configuration static variable $_config.
Executes the instance's Execute method by loading the corresponding class and instantiating it from the Session_type to the d:\wamp\www\thinkphp/extend/driver\session/directory
Record application Initialization time
Execute the MVC process,
Involves the __hack_module method and the empty module
Perform action_name behavior
_before_action method for performing the corresponding action of the module
Execute module corresponding action
_after_action method for performing the corresponding action of the module
Instantiate behavior based on app_end items recorded by extends and tags
Save Log records

Appendix:
Auto Load
First from the alias static configuration variable $_alias, if there is a direct load
In the case of the Behavior class, from the d:\wamp\www\thinkphp/lib/behavior/directory, d:\wamp\www\thinkphp/extend/behavior/directory, D:\wamp\www\ examples\blog\lib/behavior/,/behavior/directory lookup for the schema directory
If the Model class, from the d:\wamp\www\examples\blog\lib/model/directory, d:\wamp\www\thinkphp/extend/model/directory lookup
If the Action class is found from the d:\wamp\www\examples\blog\lib/action/directory, the d:\wamp\www\thinkphp/extend/action/directory
Automatic loading of App_autolaod_path items based on configuration of static variable $_config
Configuration file Order
System alias alias.php
System Conventions convention.php
System mode configuration files such as cli.php
Project configuration file config.php
Language Pack Files zh-cn.php
System Behavior File tags.php
Project behavior File tags.php
Project Core Configuration core.php
Project Alias alias.php
System Debug Configuration file debug.php
Project Debug Configuration, $status. php

ThinkPHP3.0 startup process