Application of PHP Reflection ReflectionClass and ReflectionMethod in the controller scheduling module of ThinkPHP framework

: This article mainly introduces the application of PHP Reflection ReflectionClass and ReflectionMethod in the controller scheduling module of the ThinkPHP framework. if you are interested in the PHP Tutorial, refer to it. How does the controller module of the ThinkPHP framework implement the pre-controller and post-controller, and how does it implement the method with parameters?

The ReflectionClass and reflemethod method classes provided by the PHP system can reflect attributes of user-defined classes, permission and parameters of methods, and accurately control the execution of methods.

ReflectionClass: [PHP Manual] details

Mainly used methods:

HasMethod (string) whether a method exists

GetMethod (string)

ReflectionMethod: [PHP Manual] details

Main methods:

Whether isPublic () is a public method

GetNumberOfParameters ()

GetParamters () get parameter information

Invoke (object $ object [, mixed $ parameter [, mixed $...]) execution method

InvokeArgs (object obj, array args) with parameter execution method

Example:

 IsPublic () {$ class = new ReflectionClass ('blogaction'); // execute the pre-method if ($ class-> hasMethod ('_ before_detail ')) {$ beforeMethod = $ class-> getMethod ('_ before_detail'); if ($ beforeMethod-> isPublic () {$ beforeMethod-> invoke ($ instance );}} $ method-> invoke (new BlogAction); // execute the POST method if ($ class-> hasMethod ('_ after_detail ')) {$ beforeMethod = $ class-> getMethod ('_ after_detail'); if ($ beforeMethod-> isPublic () {$ beforeMet Hod-> invoke ($ instance) ;}}// execute the method with parameters $ method = new ReflectionMethod ('blogaction', 'test '); $ params = $ method-> getParameters (); foreach ($ params as $ param) {$ paramName = $ param-> getName (); if (isset ($ _ REQUEST [$ paramName]) {$ args [] =$ _ REQUEST [$ paramName];} elseif ($ param-> isDefaultValueAvailable ()) {$ args [] = $ param-> getDefaultValue () ;}} if (count ($ args) ==$ method-> getNumberOfParameters () {$ method-> InvokeArgs ($ instance, $ args);} else {echo 'parameters is wrong! ';}

[Another reference code]

 IsPublic () {$ class = new ReflectionClass ('blogaction'); // execute the pre-method if ($ class-> hasMethod ('_ before_detail ')) {$ beforeMethod = $ class-> getMethod ('_ before_detail'); if ($ beforeMethod-> isPublic () {$ beforeMethod-> invoke ($ instance );}} $ method-> invoke (new BlogAction); // execute the POST method if ($ class-> hasMethod ('_ after_detail ')) {$ beforeMethod = $ class-> getMethod ('_ after_detail'); if ($ beforeMethod-> isPublic () {$ beforeMet Hod-> invoke ($ instance) ;}}// execute the method with parameters $ method = new ReflectionMethod ('blogaction', 'test '); $ params = $ method-> getParameters (); foreach ($ params as $ param) {$ paramName = $ param-> getName (); if (isset ($ _ REQUEST [$ paramName]) {$ args [] =$ _ REQUEST [$ paramName];} elseif ($ param-> isDefaultValueAvailable ()) {$ args [] = $ param-> getDefaultValue () ;}} if (count ($ args) ==$ method-> getNumberOfParameters () {$ method-> InvokeArgs ($ instance, $ args);} else {echo 'parameters is wrong! ';}

The above introduces the application of PHP Reflection ReflectionClass and ReflectionMethod in the controller scheduling module of the ThinkPHP framework, including some content, and hopes to help friends who are interested in PHP tutorials.