通过记录开始时间和结束时间计算一段脚本的之行时间
<?php //Create a variable for start time $time_start = microtime(true); // Place your PHP/HTML/JavaScript/CSS/Etc. Here //Create a variable for end time $time_end = microtime(true); //Subtract the two times to get seconds $time = $time_end - $time_start; echo 'Script took '.$time.' seconds to exicute'; ?>