Utility class for timing.
@package PHP @subpackage Timer @author Sebastian Bergmann <sb@sebastian-bergmann.de> @copyright 2010-2012 Sebastian Bergmann <sb@sebastian-bergmann.de> @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License @version Release: @package_version@ @link http://github.com/sebastianbergmann/php-timer @since Class available since Release 1.0.0
Expanded class hierarchy of PHP_Timer
class PHP_Timer {
/**
* @var array
*/
protected static $startTimes = array();
/**
* @var float
*/
public static $requestTime;
/**
* Starts the timer.
*/
public static function start() {
array_push(self::$startTimes, microtime(TRUE));
}
/**
* Stops the timer and returns the elapsed time.
*
* @return float
*/
public static function stop() {
return microtime(TRUE) - array_pop(self::$startTimes);
}
/**
* Formats the elapsed time as a string.
*
* @param float $time
* @return string
*/
public static function secondsToTimeString($time) {
$buffer = '';
$hours = sprintf('%02d', $time >= 3600 ? floor($time / 3600) : 0);
$minutes = sprintf('%02d', $time >= 60 ? floor($time / 60) - 60 * $hours : 0);
$seconds = sprintf('%02d', $time - 60 * 60 * $hours - 60 * $minutes);
if ($hours == 0 && $minutes == 0) {
$seconds = sprintf('%1d', $seconds);
$buffer .= $seconds . ' second';
if ($seconds != '1') {
$buffer .= 's';
}
}
else {
if ($hours > 0) {
$buffer = $hours . ':';
}
$buffer .= $minutes . ':' . $seconds;
}
return $buffer;
}
/**
* Formats the elapsed time since the start of the request as a string.
*
* @return string
*/
public static function timeSinceStartOfRequest() {
return self::secondsToTimeString(time() - self::$requestTime);
}
/**
* Returns the resources (time, memory) of the request as a string.
*
* @return string
*/
public static function resourceUsage() {
return sprintf('Time: %s, Memory: %4.2fMb', self::timeSinceStartOfRequest(), memory_get_peak_usage(TRUE) / 1048576);
}
}
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
PHP_Timer:: |
protected static | property | ||
PHP_Timer:: |
public static | function | Starts the timer. | |
PHP_Timer:: |
public static | function | Stops the timer and returns the elapsed time. | |
PHP_Timer:: |
public static | function | Formats the elapsed time as a string. | |
PHP_Timer:: |
public static | function | Formats the elapsed time since the start of the request as a string. | |
PHP_Timer:: |
public static | function | Returns the resources (time, memory) of the request as a string. | |
PHP_Timer:: |
public static | property |