Summary of commonly used system variables in Thinkphp templates_PHP tutorial

The Thinkphp template engine can directly output some system variables, system constants, and system special variables without assigning a value to a template variable. The output of system variables must start with $Think. and can still support the use of functions. Let’s share them separately.

(1) System variables : Output system variables in the template: including server, env, session, post, get, request, cookie

{$Think.server.script_name} // Output $_SERVER variable

{$Think.session.session_id|md5} // Output $_SESSION variable

{$Think.get.pageNumber} // Output $_GET variable

{$Think.cookie.name} // Output $_COOKIE variable

The above method can also be written as:

{$_SERVER.script_name} // Output $_SERVER variable

{$_SESSION.session_id|md5} // Output $_SESSION variable

{$_GET.pageNumber} // Output $_GET variable

{$_COOKIE.name} // Output $_COOKIE variable

System constants: Use $Think.const to output

Note: server, cookie, and config are not case-sensitive, but variables are case-sensitive. For example:

{$Think.server.script_name} and {$Think.SERVER.script_name} are equivalent

SESSION and COOKIE also support the output of two-dimensional arrays

For example:

{$Think.CONFIG.user.user_name}

{$Think.session.user.user_name}

The system does not support array output of more than three dimensions.


(2) Language variable : Output the current language definition value of the project

{$Think.lang.page_error}

{$Think.const.MODULE_NAME}

or use directly

{$Think.MODULE_NAME}

(3) Special variables : Constants defined internally by the ThinkPHP system

{$Think.version} //Version

{$Think.now} //Now time

{$Think.template|basename} //Template page

{$Think.LDELIM} //Template label starting symbol

{$Think.RDELIM} //Template tag end symbol

(4) Configuration parameter : Output the configuration parameter value of the project

{$Think.config.db_charset}

The output value is the same as the result of C('db_charset').

(5) thinkphp system constants (note that the following constants can also be used directly in the action controller)

__ROOT__ // Website root directory address

__APP__ // Current project (entry file) address

__URL__ // Current module address

__ACTION__ // Current operation address

__SELF__ // Current URL address

__PUBLIC__ // Website public directory

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