bench_base64.php

<?php
$retry = 100;
$start = microtime(true);
while (--$retry) {
	$length = (int)(1000/$retry);
	$str = file_get_contents("/dev/urandom", false, NULL, 0, $length);
	//echo "String lenght: ", $length, "\n";
	$time = microtime(true);
	for ($i = 0; $i < 1000000; $i++) {
		base64_encode($str);
	}
	$time = microtime(true) - $time;
	//echo "Used time: ", $time , "s", "\n";
}
echo "Total used time: ", microtime(true) - $start, "s\n";