doesnt work with freebsd. as stated above the clock ticks at different intervals on different platforms.
for system uptime consider piping the uptime command or similar, depending on if performance is an issue or not.
posix_times
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_times — Utilisation des ressources
Liste de paramètres
Cette fonction ne contient aucun paramètre.
Valeurs de retour
Retourne un tableau avec les informations sur l'utilisation du CPU. Les indices sont :
- ticks - nombre de ticks depuis le dernier démarrage.
- utime - temps utilisateur utilisé par le processus courant.
- stime - temps système utilisé par le processus courant.
- cutime - temps utilisateur utilisé par le processus courant et ses enfants.
- cstime - temps système utilisé par le processus courant et ses enfants.
false on failure.
Exemples
Exemple #1 Exemple avec posix_times()
<?php
$times = posix_times();
print_r($times);
?>Résultat de l'exemple ci-dessus est similaire à :
Array
(
[ticks] => 25814410
[utime] => 1
[stime] => 1
[cutime] => 0
[cstime] => 0
)
Notes
Avertissement
Cette fonction n'est pas fiable, elle peut retourner des valeurs négatives pour des temps élevés.
add a note
User Contributed Notes 4 notes
brain at winbot dot co dot uk ¶
20 years ago
murphy at nmc-online dot co dot uk ¶
21 years ago
I am not sure why, and it could just be me but on my FreeBSD system using
$time = posix_times();
$time['ticks'] is an enormous value that bears no relation to the system uptime (I tested by rebooting the system, the number does not change).
I checked my timecounters, they tick every 10.000msec and I did the maths on the returned value and it suggested the machine had been up for over 200 days - it was reformatted about a week ago.
This could be to do with FreeBSD, or *BSD, or just *idiots like me but just check before you use the function.
~
FreeBSD 5.1-R, Apache 2.0.46, PHP4.3.2
not_rich_yet at hotmail dot com ¶
21 years ago
If you want the output to be 'grammatically correct' then try the following code. It will eg print '1 minute' as opposed to '1 minutes', the same goes for days and hours:
Put the following code somewhere in the head of the page code:
<?php
function uptime() {
if (!$times = posix_times() ) {
return ("unknown");
} else {
$now = $times['ticks'];
$days = intval($now / (60*60*24*100));
$remainder = $now % (60*60*24*100);
$hours = intval($remainder / (60*60*100));
$remainder = $remainder % (60*60*100);
$minutes = intval($remainder / (60*100));
if ($days == 1) {$writeDays = "day";} else {$writeDays = "days";}
if ($hours == 1) {$writeHours = "hour"; } else {$writeHours = "hours";}
if ($minutes == 1) {$writeMins = "minute";} else {$writeMins = "minutes";}
return ("$days $writeDays, $hours $writeHours, $minutes $writeMins");
}
}
?>
Then put this bit where you want the info displayed:
<?php
print uptime();
?>
Regards,
nry
rossz+php at vamos-wentworth dot org ¶
22 years ago
This function will return the system uptime as a human readable string such as "172 days, 18 hours, 15 minutes". I didn't bother to handle singular so the grammar could be a bit off, e.g. 1 hours.
function uptime() {
if (!$times = posix_times()) {
return ("unknown");
} else {
$now = $times['ticks'];
$days = intval($now / (60*60*24*100));
$remainder = $now % (60*60*24*100);
$hours = intval($remainder / (60*60*100));
$remainder = $remainder % (60*60*100);
$minutes = intval($remainder / (60*100));
return ("$days days, $hours hours, $minutes minutes");
}
}
