groundwalker.com

The following are how to measure execution time of your PHP script. The script should take enough time for which the time of the measurement itself is inconsequential.

PHP スクリプトの実行時間を計測する方法。計測対象処理はそれなりの長さにしないといけないけどね。

• time command

  % time php [your script].php
  

• Use PHP: microtime - Manual

  $start=microtime(true); // for PHP5
    // for PHP4. use microtime_float() described in the manual
  /*
   do your codes
  */
  $elapsed_time=microtime(true)-$start;
  

• or use PEAR :: Package :: Benchmark

  require_once('Benchmark/Timer.php');
  $timer=new Benchmark_Timer(true);
  // do something
  

The Benchmark package seems useful for various measurements.