//返回微秒,优化调试使用 function microtime_float() { list($usec, $sec) = explode(" ", microtime()); return ((float) $usec + (float) $sec); } $time_start = microtime_float(); usleep(100); $time_end = microtime_float(); $time = $time_end - $time_start; echo "Did nothing in $time seconds\n";
来自ansion博客
2017-10-01 14:58:20