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ReflectionFunctionAbstract::getParameters

(PHP 5 >= 5.2.0, PHP 7)

ReflectionFunctionAbstract::getParametersGets parameters

Beschreibung

public ReflectionFunctionAbstract::getParameters ( ) : array

Get the parameters as an array of ReflectionParameter.

Warnung

Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verf├╝gung.

Parameter-Liste

Diese Funktion besitzt keine Parameter.

R├╝ckgabewerte

The parameters, as a ReflectionParameter object.

Siehe auch

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User Contributed Notes 2 notes

up
8
dabidi at slupca dot pl
5 years ago
This is part of my private framework that uses reflection.
This function get arguments list from theme method and puts corresponding vars from $_REQUEST ($_GET, $_POST, and $_COOKIE)

<?php
public static function fire_theme_method($class, $method)
{
       
$fire_args=array();
       
       
$reflection = new ReflectionMethod($class, $method);

    foreach(
$reflection->getParameters() AS $arg)
    {
        if(
$_REQUEST[$arg->name])
       
$fire_args[$arg->name]=$_REQUEST[$arg->name];
        else
       
$fire_args[$arg->name]=null;
    }
       
    return
call_user_func_array(array($class, $method), $fire_args);
}
?>
For example, if my theme method needs only id, and we get this url:
http://example.com/my_class/my_method/?id=12&some_unwanted_var=123
will be ignored some_unwanted_var

Of course behind this i have .htaccess, autoloader and controller
up
1
a dot lucassilvadeoliveira at gmail dot com
4 days ago
We can use this functionality to automatically pass arguments to our function based on some data structure.

NOTE: I am using a php 8.0> feature called "Nameds parameter".

<?php

$valuesToProcess
= [
 
'name' => 'Anderson Lucas Silva de Oliveira',
 
'age' => 21,
 
'hobbie' => 'Play games'
];

function
processUserData($name, $age, $job = "", $hobbie = "")
{
   
$msg = "Hello $name. You have $age years old";
    if (!empty(
$job)) {
   
$msg .= ". Your job is $job";
    }

    if (!empty(
$hobbie)) {
       
$msg .= ". Your hobbie is $hobbie";
    }

    echo
$msg . ".";
}

$refFunction = new ReflectionFunction('processUserData');
$parameters = $refFunction->getParameters();

$validParameters = [];
foreach (
$parameters as $parameter) {
    if (!
array_key_exists($parameter->getName(), $valuesToProcess) && !$parameter->isOptional()) {
        throw new
DomainException('Cannot resolve the parameter' . $parameter->getName());
    }

    if(!
array_key_exists($parameter->getName(), $valuesToProcess)) {
        continue;
    }

   
$validParameters[$parameter->getName()] = $valuesToProcess[$parameter->getName()];
}

$refFunction->invoke(...$validParameters);
?>

Results in:

Hello Anderson Lucas Silva de Oliveira. You have 21 years old. Your hobbie is Play games.
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