The example in this article describes the method of calculating function execution time in PHP. Share it with everyone for your reference. The details are as follows:
We can record the start and end time before and after the program. The difference between the two times is the execution time of the program.
The code is as follows:
$long_str = "this is a test to see how much time md5 function takes to execute over this string";
// start timing from here
$start = microtime(true);
// function to test
$md5 = md5($long_str);
$elapsed = microtime(true) - $start;
echo "That took $elapsed seconds.n";
?>
// start timing from here
$start = microtime(true);
// function to test
$md5 = md5($long_str);
$elapsed = microtime(true) - $start;
echo "That took $elapsed seconds.n";
?>
The running results are as follows:
That took 7.1525573730469E-6 seconds.
I hope this article will be helpful to everyone’s PHP programming design.