lastMark = $this->getmicrotime();
}
/**
* Returns a reference to the global Profiler object, only creating it
* if it doesn't already exist.
*
* This method must be invoked as:
* $browser = & JProfiler::getInstance( $prefix );
*
* @access public
* @param string Prefix used to distinguish profiler objects.
* @return easyProfiler The Profiler object.
*/
function &getInstance($prefix = '')
{
static $instances;
if (!isset($instances)) {
$instances = array();
}
if (empty($instances[$prefix])) {
$instances[$prefix] = new easyProfiler($prefix);
}
return $instances[$prefix];
}
/**
* Output a time mark
*
* @access public
* @param string A label for the time mark
* @return string Mark
*/
function mark( $label )
{
$out = '';
$time = $this->getmicrotime();
$mark = $this->_prefix." $label: ";
$mark .= sprintf('%.3f', $time - $this->_start) . ' seconds';
$out .= sprintf('%.3f', $time - $this->_start) . ' sec';
$out .= ' - '.sprintf('%.3f', $time - $this->lastMark) . ' sec';
$this->lastMark = $time;
if ( function_exists('memory_get_usage') ) {
$mark .= ', '.sprintf('%0.2f', memory_get_usage() / 1048576 ).' MB';
$out .= ' - '.sprintf('%0.2f', memory_get_usage() / 1048576 ).' MB';
}
$this->_buffer[] = $mark;
return ''.$out.' ';
}//function
}//class