Calculate Execution time

calculate_page_execution_time.php

<?php
function time_elapsed($secs){
    $bit = array(
        'y' => $secs / 31556926 % 12,
        'w' => $secs / 604800 % 52,
        'd' => $secs / 86400 % 7,
        'h' => $secs / 3600 % 24,
        'm' => $secs / 60 % 60,
        's' => $secs % 60
        );
    
    foreach($bit as $k => $v)
        if($v > 0)$ret[] = $v . $k;
    
    return join(' ', $ret);
}

$start = time();
$end = time();
print "time_elapsed_A: ".time_elapsed( $end - $start)."\n";
?>