ReflectionFunction::invoke

(PHP 5)

ReflectionFunction::invokeInvokes function

Description

public mixed ReflectionFunction::invoke ([ mixed $parameter [, mixed $... ]] )

Invokes a reflected function.

Parameters

args

The passed in argument list. It accepts a variable number of arguments which are passed to the function much like call_user_func() is.

Return Values

Returns the result of the invoked function call.

Examples

Example #1 ReflectionFunction::invoke() example

<?php
function title($title$name)
{
    return 
sprintf("%s. %s\r\n"$title$name);
}

$function = new ReflectionFunction('title');

echo 
$function->invoke('Dr''Phil');
?>

The above example will output:

Dr. Phil

Notes

Note:

If the function has arguments that need to be references, then they must be references in the passed argument list.

See Also

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User Contributed Notes 1 note

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spark at limao dot com dot br
3 years ago
I know Reflections classes have a lot of power, but sometimes all we need is to store a annonymus function or even create a simple callback somewhere.

so here it is, the Callback class:
<?php
   
class Callback{
        private
$name = false;
       
        public function
Callback($obj,$call=false){
           
$name = array($obj);
            if(
$call) $name[] = $call;
           
           
$this->name = $name;
        }
        public function
invoke($params=array()){
            return
call_user_func_array($this->name,$params);
        }
    }
?>

Usage:
<?php
   
function sayName(){
        return
"goku";
    }
   
   
$myVar = new Callback("sayName");
   
    echo
"Hi, I am ".$myVar->invoke()."!";
   
   
//also works with methods: new Callback($obj,"method");
?>
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