The ReflectionFunction::invoke() function is an inbuilt function in PHP which is used to return the result of the invoked function call.
Syntax:
mixed ReflectionFunction::invoke( mixed $args)
Parameters: This function accept parameter $args which holds the list of arguments passed to the called function.
Return Value: This function returns the result of the invoked function call.
Below programs illustrate the ReflectionFunction::invoke() function in PHP:
Program_1:
<?php   // Initializing a user-defined function function Company($Company_Name, $Role) {     return sprintf("%s %s\r\n", $Company_Name, $Role); }   // Using ReflectionFunction() over the // specified function company $function = new ReflectionFunction('company');   // Calling the invoke() function $A = $function->invoke('neveropen',             'is a Computer Science Portal.');   // Getting the result of the invoked function company echo $A; ?> |
Output:
neveropen is a Computer Science Portal.
Program_2:
<?php   // Initializing some user-defined functions function Trial1($First_Args, $Second_Args) {     return sprintf("%s %s\r\n", $First_Args, $Second_Args); }   function Trial2($First_Args, $Second_Args) {     return sprintf("%s %s\r\n", $First_Args, $Second_Args); }   // Using ReflectionFunction() over the above // specified functions $function = new ReflectionFunction('Trial1'); $function = new ReflectionFunction('Trial2');   // Calling the invoke() function and getting the // result of the invoked function company echo $function->invoke('a+a', '= 2a'); echo $function->invoke('a*a', '= a^2'); ?> |
Output:
a+a = 2a a*a = a^2
Reference: https://www.php.net/manual/en/reflectionfunction.invoke.php
