PHP gets the time in milliseconds microtime() usage_PHP tutorial

In PHP, if we want to get milliseconds, we must use microtime() to convert them. Let me give you some examples. I hope it will be helpful to everyone.

Questions are not afraid of the mentally retarded...memorize everything

0.06261400 1303715872

The code is as follows

代码如下	复制代码
function getmicrotime()  {      list($usec, $sec) = explode(" ",microtime());      return ((float)$usec + (float)$sec);  }

Copy code

function getmicrotime()
{
List($usec, $sec) = explode(" ",microtime());
Return ((float)$usec + (float)$sec);
}

In fact, it just dealt with the microtime() function.

The return value of the microtime() function is in this form:

代码如下	复制代码
/** * Simple function to replicate PHP 5 behaviour */ function microtime_float() { list($usec, $sec) = explode(" ", microtime()); return ((float)$usec + (float)$sec); } $time_start = microtime_float(); // Sleep for a while usleep(100); $time_end = microtime_float(); $time = $time_end - $time_start; echo "Did nothing in $time secondsn"; ?>

The space after the space is the current timestamp, and the space before the space is the current precise time

Example, calculate page execution time function

The code is as follows

Copy code

/** * Simple function to replicate PHP 5 behaviour */ function microtime_float() { List($usec, $sec) = explode(" ", microtime()); Return ((float)$usec + (float)$sec); } $time_start = microtime_float(); // Sleep for a while usleep(100); $time_end = microtime_float(); $time = $time_end - $time_start; echo "Did nothing in $time secondsn"; ?> http://www.bkjia.com/PHPjc/633053.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633053.htmlTechArticleIn php, if we want to get milliseconds, we must convert them through microtime(). Let me tell you what Here are a few examples, I hope it will be helpful to everyone. The problem is not afraid of the mentally retarded...