ReflectionFunctionAbstract::getParameters

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

ReflectionFunctionAbstract::getParametersGets parameters

Beschreibung

public ReflectionFunctionAbstract::getParameters(): array

Get the parameters as an array of ReflectionParameter, in the order in which they are defined in the source.

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

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8
dabidi at slupca dot pl
6 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
2
a dot lucassilvadeoliveira at gmail dot com
1 year 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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