janeklb/gist:4761535

## gistfile1.php
<?php

# Simple loop copy
function loop_copy($array) {
	$object = new stdClass();
	foreach ($array as $key => $value) {
		$object->$key = $value;
	}
}

# leveraging json_decode + json_encode
function json_copy($array) {
	json_decode(json_encode($array), FALSE);
}

# http://pear.php.net/package/Benchmark/
# http://pear.php.net/package/Benchmark/docs/1.2.9/Benchmark/Benchmark_Timer.html
require 'Benchmark/Timer.php';

# prepare the arrays to be copied
$sizes = array(5, 20, 100, 500);
$arrays = array();
foreach ($sizes as $size) {
	$array = array();
	$i = $size;
	while ($i-- >= 0) {
		$key = uniqid('key');
		$array[$key] = uniqid('value');
	}
	$arrays[] = $array;
}

# Prepare timer and iterations
$itera = array(100, 500, 1000);
foreach ($itera as $i) {

	foreach ($arrays as $array) {

		$array_len = count($array);

		$timer = new Benchmark_Timer(TRUE);

		$x = $i;
		while ($x-- >= 0) {
			json_copy($array);
		}
		$timer->setMarker("json_copy with $i copies of array size $array_len");

		$x = $i;
		while ($x-- >= 0) {
			loop_copy($array);
		}
		$timer->setMarker("loop_copy with $i copies of array size $array_len");


		$timer->display();
	}
}
	<?php

	# Simple loop copy
	function loop_copy($array) {
	$object = new stdClass();
	foreach ($array as $key => $value) {
	$object->$key = $value;
	}
	}

	# leveraging json_decode + json_encode
	function json_copy($array) {
	json_decode(json_encode($array), FALSE);
	}

	# http://pear.php.net/package/Benchmark/
	# http://pear.php.net/package/Benchmark/docs/1.2.9/Benchmark/Benchmark_Timer.html
	require 'Benchmark/Timer.php';

	# prepare the arrays to be copied
	$sizes = array(5, 20, 100, 500);
	$arrays = array();
	foreach ($sizes as $size) {
	$array = array();
	$i = $size;
	while ($i-- >= 0) {
	$key = uniqid('key');
	$array[$key] = uniqid('value');
	}
	$arrays[] = $array;
	}

	# Prepare timer and iterations
	$itera = array(100, 500, 1000);
	foreach ($itera as $i) {

	foreach ($arrays as $array) {

	$array_len = count($array);

	$timer = new Benchmark_Timer(TRUE);

	$x = $i;
	while ($x-- >= 0) {
	json_copy($array);
	}
	$timer->setMarker("json_copy with $i copies of array size $array_len");

	$x = $i;
	while ($x-- >= 0) {
	loop_copy($array);
	}
	$timer->setMarker("loop_copy with $i copies of array size $array_len");


	$timer->display();
	}
	}