Work out time taken to run a block, give it a nice name/label and output a nice message.

time_taken.php

<?php

/**
 * Work out time taken to run a block, give it a nice name/label
 * and output a nice message.
 * 
 * @param  string $name
 * @param  callable $call
 * @return mixed
 */
function time_taken($name = 'Function call ', $call)
{
    $start = microtime(true);
    $return = $call();
    $total = microtime(true) - $start;

    echo PHP_EOL . $name . ' took ' . $total . ' seconds' . PHP_EOL;
    return $return;
}