Summary of call_user_func_array() function definition and usage

The callback function passes a function as a parameter to the called function. If a parameter of type callback appears in the format description of a function, the function is a callback function. Although you can use variable functions to declare your own callback functions, the most common implementation is through the call_user_func_array() function. The previous chapter introduced the declaration and application of variable functions in PHP callback functions. Using variable functions to transfer a user-defined execution process to the function greatly increases the user's expansion of function functions and allows users to define a function of their own. Passed to the function for internal use. This section explains the call_user_func_array() function with an example. The function call_user_func_array() is a built-in function in PHP. In fact, it is also a callback function. Its format is as follows: mixed call_user_func_array( callback function, array param_a

1. callback function of php function (2) call_user_func_array() function

Introduction: The callback function passes a function as a parameter to the calling function. If a callback type parameter appears in the format description of the function, the function is a callback function.

##2. An example of usage of the call_user_func_array() function in php

Introduction: An example of usage of call_user_func_array() function in PHP

3. Usage demonstration of call_user_func_array() function in PHP_ PHP tutorial

Introduction: Demonstration of the usage of the call_user_func_array() function in PHP call_user_func_array (PHP 4 = 4.0.4, PHP 5) call_user_func_array -- Call a user function given with an array of parameters Description mixed call_user_func_array ( callback function

4. call_user_func function and call_user_func_array function analysis_PHP tutorial

Introduction: Analysis of the call_user_func function and call_user_func_array function. Today I accidentally saw the call_user_func_array() function in PHP in the official documentation of CodeIgniter. I also encountered it in the code of the discuz forum last year. Today on the Internet

5. About how to deal with invalid functions in PHP5.3

Introduction: About how to deal with invalid functions in PHP5.3 The method is copied and pasted...The obsolete functions are as follows: call_user_method() (use call_user_func() instead) call_user_method_array() (use call_user_func_array() instead) define_syslog_variables() dl() ereg() (use

6. A warning in php wordpress, how to solve it

Introduction: A warning in php wordpress Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'importFile' not found or invalid function name in /home/wwwroot/bocserver

7. Understanding php _call() and call_user_func_array()

Introduction: Understanding php __call() and call_user_func_array() 1. mixed __call ( string name, array arguments )The magic method __call() allows to capture invocation of non existing methods. That way

8. PHP5.3 obsolete function Replacement note

#Introduction: PHP5.3 obsolete function replacement note ?call_user_method() (Use call_user_func() alternative) ????call_user_method_array() (Use call_user_func_array() alternative) ????define_syslog_variables() ????dl() ????er

9. Are there any questions about the source code of WordPress Bible

Introduction: WordPress Bible Is there any problem with the source code? When the WordPress Bible talks about Chapter 5: Extending WordPress with Plugins, there is an example. I encountered such a problem during the trial. Please give some advice: Warning: call_user_func_array()&

10. Usage demonstration of the call_user_func_array() function in PHP

Introduction: Usage demonstration of the call_user_func_array() function in PHP. call_user_func_array (PHP 4 = 4.0.4, PHP 5) call_user_func_array -- Call a user function given with an array of parameters Description mixed call_user_func_array ( callback function

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