This shows that calling a closure magically is faster than calling the margin method directly

wtf.php

<?php
/**
 * Configuration options
 *
 */
$iterations = 1000000;
info();

$callable = function() {
  return 1 + 1;
};
 
/**
 * Actual Benchmarks to run
 *
 */
benchmark('direct-call', $iterations, function() use ($callable) {
	$callable->__invoke();
});

benchmark('magic', $iterations, function()  use ($callable) {
	$callable();
});
 
 
// ----------------------------------------
// ----------------------------------------
// Modification below here not necessary,
// unless you're correcting some code that
// I fucked up.
// ----------------------------------------
// ----------------------------------------
 
/**
 * Environment Information and Test Result header
 *
 * @return void
 */
function info() {
	echo "/**\n";
	echo " * ----------------------------------------\n";
	echo " * PHP " . phpversion() . " (" . php_sapi_name() . ")\n";
	echo " * Memory: " . (memory_get_peak_usage(true) / 1024 / 1024) . "MB / " . ini_get('memory_limit') . "\n";
	echo " * ----------------------------------------\n";
	echo " */\n\n";
}
 
/**
 * Generic Benchmarking Function
 *
 * @param string $title Title of the test set
 * @param string $iterations iterations to perform
 * @param string $code Code to run
 * @return void
 */
function benchmark($title, $iterations, $code) {
	$start = microtime(true);
	for ($i = 0; $i < $iterations; $i++) {
		$code();
	}
	$elapsed = microtime(true) - $start;
	echo "$title\n   => $elapsed\n";
};