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| <?php | |
| if (isset($_GET['ajax'])) { | |
| session_start(); | |
| $handle = fopen('/private/var/log/system.log', 'r'); | |
| if (isset($_SESSION['offset'])) { | |
| $data = stream_get_contents($handle, -1, $_SESSION['offset']); | |
| echo nl2br($data); | |
| } else { | |
| fseek($handle, 0, SEEK_END); | |
| $_SESSION['offset'] = ftell($handle); | |
| } | |
| exit(); | |
| } | |
| ?> | |
| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <script src="http://code.jquery.com/jquery-1.8.2.min.js"></script> | |
| <script src="http://creativecouple.github.com/jquery-timing/jquery-timing.min.js"></script> | |
| <script> | |
| $(function() { | |
| $.repeat(1000, function() { | |
| $.get('tail.php?ajax', function(data) { | |
| $('#tail').append(data); | |
| }); | |
| }); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <div id="tail">Starting up...</div> | |
| </body> | |
| </html> |
You must set the position of scrollbar at the bottom whenever requested by ajax
Helpfull, Thanks!!
great, thx
I change it for my use
if (isset($_SESSION['offset'])) {
$data = stream_get_contents($handle, -1, $_SESSION['offset']);
$_SESSION['offset'] += strlen($data);
echo $data;
} else {
fseek($handle, 0, SEEK_END);
$_SESSION['offset'] = ftell($handle);
}
The mode is not binary-safe ('b' is missing)
From official documentation:
Note: For portability, it is strongly recommended that you always use the 'b' flag when opening files with fopen().
Note: Again, for portability, it is also strongly recommended that you re-write code that uses or relies upon the 't' mode so that it uses the correct line endings and 'b' mode instead.
Replacing $handle = fopen('/private/var/log/system.log', 'r'); by $handle = fopen('/private/var/log/system.log', 'rb');
I made a version based on this gist: https://gist.github.com/exprodrigues/18a1a4838056723231db5fed10cb10a8
Hi
The code places it in a PHP daemon but stops for no reason, I saw a comment that recommended placing a 'b' in the 'fopen' but it is not clear to me that it is 'b' and if the problem is solved, I would appreciate it To guide me.
don't hardcode the name tail.php , make the code name-independent, just do $.get('?ajax' and the browser will fill in the blanks, wether it be tail.php or logs.php or anythingelse.php.
furthermore, don't use setInterval for this (i assume that's what repeat() does?) - if you're on a slow connection, and use setInterval, it will start downloading several copies of the same logs simultaneously! (if its slow enough, will keep doing this until you reach the browser's max socket limit!) - call the function once, and have it call setTimeout() on itself
@wilsaav this code is not built as a daemon at all, if you want to daemonize this, you'd better write it from scratch.
this code is built to run on-demand whenever the browser request a log update, and the browser javascript is built to request a log update 1000 milliseconds (aka 1 second)
@wilsaav maybe check out this server - https://github.com/divinity76/tailserver/blob/master/tailserver.php
Automatic scroll done
window.scrollTo(0,document.body.scrollHeight);
Nop it simply doesnt work on linux ubuntu tested it now, not logging my syslog file
Found also this nice Bootstrap based multi-file Logviewer with optional grep:
https://github.com/taktos/php-tail
Thanks Helpfull, Thanks!!
Is there any way to keep the view at the bottom of the screen? i.e. keep scrolling?