php : 수행시간 검사하기

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function microtime_float()
{
  list($usec, $sec) = explode(" ", microtime());
  return ((float)$usec + (float)$sec);
}
$time_start = microtime_float();
// ----- 측정하고자 하는 영역 시작
// ----------------------------------------
$difftime = $time_end - $time_start;
$difftime = number_format($difftime,5);
echo <<<FOOT
<HR>
Processing Time : $difftime sec
FOOT;
 
 
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