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phparraysdynamicmethodschaining
nteath
nteath

Reputation: 270

PHP Method chaining with dynamic names

I was wondering if it's possible to create a method chaining using the values (or keys) of an array as the dynamic names of the methods.

For example, I have an array: $methods = ['first', 'second', 'third']

Is it possible to create the following call ?

first()->second()->third();

Upvotes: 3

Views: 1943

Answers (2)

User Pro
User Pro

Reputation: 243

You can also use eval function. Example:

$object = new SomeClass(); // first, second, third
$methods = ['first', 'second', 'third'];

$callStr = 'return $object->';

foreach($methods as $method){
    $callStr.= $method . '()->';
}

$callStr = substr($callStr, 0, -2);
$callStr.= ';'; // return $object->first()->second()->third();

$result = eval($callStr); // return result of call - $object->first()->second()->third();

Upvotes: -1

Marius
Marius

Reputation: 4016

This is untested. Something along the lines of:

$object = null; // set this to an initial object to call the methods on

foreach ($methods as $value)
{
    $object = $object->$value();
}

Note that each method you call should return an object that has a method to be called next. If it's an object of the same class - then it can just return itself with each chainable method.

Upvotes: 3

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