PHP timimg script using microtime() and BC Math

php_time_profiler.php

#!/usr/bin/php
<?php
$profile = function() {
    static $start = '0';
    list($timestamp, $microseconds) = split(' ', microtime());
    $current = bcadd($timestamp, $microseconds, 4);
    if ($start === '0') {
        $start = $current;
        return;
    }
    return bcsub($current, $start, 4);
};
$profile();

usleep(1000000); // 1 second

echo $profile() . ' seconds' . PHP_EOL;
?>

This is exactly what I was looking for. Thanks :)