CODEWITHSUNDEEP
phphtmlload-time
sark9012
sark9012

Reputation: 5717

Show load time on page

I want to show the users how long the page takes to fully load in the footer of my website.

How do I go about doing this? I assume there is a function that can be used for this?

Not sure what language this type of feature is developed in?

Any help would be appreciated, thanks.

Upvotes: 11

Views: 40148

Answers (4)

Willtech
Willtech

Reputation: 111

The other answers are correct, there are two methods depending on the version of PHP in use PHP has introduced $_SERVER['REQUEST_TIME_FLOAT'].

To embed a formatted PageGen time use the following;

PHP7.3

<div align="center"><span style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size:8px; color #333333;">(PageGen <?
$tt = number_format(rtrim(sprintf("%.20f", (microtime(true) - $_SERVER['REQUEST_TIME_FLOAT'])), "0"),6,'.',',');
if (strpos(($tt."0"), "0") != 0) {
  $tt = number_format($tt,2,'.',',');
}
echo ($tt);
?> Seconds)</span></div>

On some of my servers this did not work on PHP7.4 and it did not work on PHP4 versions, but it is in the documentation.

Appendix:
https://php.willtech.net.au/manual/en/function.microtime
https://php.willtech.net.au/reserved.variables.server

Upvotes: 1

Marwan Salim
Marwan Salim

Reputation: 722

2 simple steps to show load time on your page:

1. Put this code at beginning of your page: 

 <?php $start_time = microtime(true); ?>

2. Put this code at the end of your page: 

This page was generated in <?php echo(number_format(microtime(true) - $start_time, 2)); ?> seconds.

Upvotes: 3

Rahul Tripathi
Rahul Tripathi

Reputation: 172378

You may try like this:

$starttime = microtime(true); // Top of page
// Code
$endtime = microtime(true); // Bottom of page

printf("Page loaded in %f seconds", $endtime - $starttime );

As commented by Ed Heal you need to use JavaScript as network/proxy/routes need to be factored in.

Also you may try this approach as well:

From the source

Put the following code at the very top of your PHP page (if you measure the time needed for particular part of the code put this right before that PHP code part)

<?php
$time = microtime();
$time = explode(' ', $time);
$time = $time[1] + $time[0];
$start = $time;
?>

The following code has to be put at the very end of the web page (or the end of the PHP code part)

<?php
$time = microtime();
$time = explode(' ', $time);
$time = $time[1] + $time[0];
$finish = $time;
$total_time = round(($finish - $start), 4);
echo 'Page generated in '.$total_time.' seconds.';
?>

Upvotes: 32

Koen Peters
Koen Peters

Reputation: 12916

You need two times: the starttime and the endtime. Using JavaScript the starttime can only be approximated because the script will only fire when it is loaded, not before. This means that you will not measure stuff like DNS looking, initial latency and initial downloading. If you're fine with this limitation do this:

  1. In the head of the page determine the current time using an inline script
  2. On the firing of the onload determine the current time again
  3. subtract the first time from the second and then you have the total time it took to load the page

Another caveat: Stuff that gets loaded via ajax is not measured here either. The onload fires before the ajax stuff runs.

Upvotes: 1

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