Closure::call

(PHP 7, PHP 8)

Closure::call — Binds and calls the closure

Description

public function Closure::call(object $newThis, mixed ...$args): mixed

Temporarily binds the closure to newThis, and calls it with any given parameters.

Parameters

newThis: The object to bind the closure to for the duration of the call.
args: Zero or more parameters, which will be given as parameters to the closure.

Return Values

Returns the return value of the closure.

Examples

Example #1 Closure::call() example

<?php
class Value {
    protected $value;

    public function __construct($value) {
        $this->value = $value;
    }

    public function getValue() {
        return $this->value;
    }
}

$three = new Value(3);
$four = new Value(4);

$closure = function ($delta) { var_dump($this->getValue() + $delta); };
$closure->call($three, 4);
$closure->call($four, 4);
?>

The above example will output:

int(7)
int(8)