KvZ Comments

Comment by Andrew on: List of social bookmarking sites

Andrew — Tue, 10 Nov 2009 03:11:24 +0100

http://www.joontz.com is another one.

Comment by Boby321pk on: List of social bookmarking sites

Boby321pk — Mon, 09 Nov 2009 15:05:54 +0100

This information is very usefull for me thanx for the team

Comment by rana on: Create daemons in PHP

rana — Mon, 09 Nov 2009 13:00:36 +0100

here is my code #!/usr/bin/php -q <?php require_once "System/Daemon.php"; // Include the Class System_Daemon::setOption("appName", "ct"); // Minimum configuration System_Daemon::start(); // Spawn Deamon! $path = System_Daemon::writeAutoRun(); while(1) { sleep(5); } ?> why i cant start/stop the daemon using sudo /ect/init.d/ct start or stop ?? i'm using ubuntu 8.10 and daemon is running nicely using sudo ./daemon.php

Comment by Kevin on: Create daemons in PHP

Kevin — Sun, 08 Nov 2009 13:48:29 +0100

@ Sun Location: The Troubleshooting section covers your problem

Comment by Kevin on: Schedule automatic updates on Ubuntu

Kevin — Sun, 08 Nov 2009 13:47:56 +0100

@ Sid: sudo can't handle that syntax. leave out either sudo or those parenthesis

Comment by Kevin on: Generate HTML with PHP

Kevin — Sun, 08 Nov 2009 13:46:15 +0100

@ Quazatron: Glad you like it!

Comment by Kevin on: Make SSH connections with PHP

Kevin — Sun, 08 Nov 2009 13:45:42 +0100

@ Jafar: That's not enough to go on sorry, I also don't run your OS so can't test anything. Maybe you have more luck with the pure PHP implementation found here: http://phpseclib.sourceforge.net/documentation/net.html

Comment by Sun Location on: Create daemons in PHP

Sun Location — Sat, 07 Nov 2009 11:04:35 +0100

Thanks you very much for this ! I've try the application but I have this error : MySQL has gone away

Comment by Sid on: Schedule automatic updates on Ubuntu

Sid — Wed, 04 Nov 2009 09:30:58 +0100

on Ubuntu 9.04 (Jaunty) server, I executed sudo (/usr/bin/aptitude -y update && /usr/bin/aptitude -y safe-upgrade) 2>&1 >> /var/log/auto_update.log and getting the following error: -bash: syntax error near unexpected token `/usr/bin/aptitude' Is it because it's not meant to be executed like that?

Comment by Quazatron on: Generate HTML with PHP

Quazatron — Tue, 03 Nov 2009 10:50:13 +0100

NIce work! Just what I need for a quick and dirty database frontend.

Comment by Łukasz Wojciechowski on: How virtualization will improve your code

Łukasz Wojciechowski — Sun, 01 Nov 2009 23:11:23 +0100

Hi I had the same idea to virtualize my dev environment so I can quickly move it to other computer or share with coworkers. Basically I used the same techique but changed network configuration. I created additional "host only" network adapter in VirtualBox and in my virtual server configuration I defined additional network interface of type "host adapter only". So finally virtual server has two interfaces. First of type NAT wich gives me internet access and second of type "hsot only interface" which gives me communication between my host system and virtual server. Best regards

Comment by Mike on: Make SSH connections with PHP

Mike — Wed, 28 Oct 2009 03:05:08 +0100

I found a great SSH2 client at: http://verticalevolution.com/index.php?/archives/4-PHP-Client-SSH.html It has an easy interface and a good wrapper.

Comment by Jafar on: Make SSH connections with PHP

Jafar — Tue, 27 Oct 2009 21:29:30 +0100

Hi, great doc. I have followed the steps. And, I am able to connect but I am not able to send a file. I do not get any error messages either. Any thoughts? I am running, RHent5.4 and Zend Server CE (apache 2.x, php 5.2.6).

Comment by Shamun on: My new IDE: NetBeans

Shamun — Tue, 27 Oct 2009 14:19:55 +0100

Kevin and Guys, I would suggestie all the programmeurs!! Including you too ;) , the moment you are feeling what IDE can do. Get those: 1. Notepad++ ( i love it, want to invest/donate for it ) - http://notepad-plus.sourceforge.net/nl/site.htm - make your own delphi, c/c++ plugins 2. Netbeans ( i hate one thing he dont have indents like notepad++, and performance in my 512mb ram laptop from 1995) 3. Compare notepad++ VS netbeans first, then do what ever you want

Comment by jatrn on: Create daemons in PHP

jatrn — Mon, 26 Oct 2009 16:05:00 +0100

kevin: sounds good. just let me know how to do it :) thanks a lot

Comment by Kevin on: Create daemons in PHP

Kevin — Sun, 25 Oct 2009 18:48:17 +0100

@ wregen & aeuglein: I don't have one yet, but there are plans to team up with System_Socket which is probably getting a revamp: http://article.gmane.org/gmane.comp.php.pear.devel/48419 After that, life should be sweet for you guys @ Kees: There has to be some logging or something otherwise growing going on in your code. Cause if you run System_Daemon without custom code, this does not happen. @jatrn: I will change the log level to DEBUG, so that you can then choose to turn off debug logging, how does that sound?

Comment by Kevin on: Schedule tasks on Linux using crontab

Kevin — Sun, 25 Oct 2009 13:17:18 +0100

@ Derek: hehe thanks : )

Comment by Kevin on: Create short IDs with PHP - Like Youtube or TinyURL

Kevin — Sun, 25 Oct 2009 13:16:51 +0100

@ Tanzmusik: Well it was never the goal of this function to be used as a security measure, but Simon Franz was kind enough to provide a patch for that nonetheless: http://github.com/kvz/kvzlib/commit/323e9c3bb3e489150bdddea51a785e1e931003d7

Comment by jatrn on: Create daemons in PHP

jatrn — Sat, 24 Oct 2009 02:46:55 +0100

The log of my daemon is full of: info: phpvoices daemon received signal: child. Since my PHP script is a constant loop (with 1 second sleep), I'm getting entry to the log every second. Is there any way to turn this notification off? Thanks again for this package. jatrn

Comment by aeuglein on: Create daemons in PHP

aeuglein — Tue, 20 Oct 2009 20:30:40 +0100

I have to say I am also interested in the simple example "wregen" asked for! #91

Comment by aobeda on: Survive heavy traffic with your webserver

aobeda — Mon, 19 Oct 2009 16:03:23 +0100

thank yuo vary good

Comment by aobeda on: Survive heavy traffic with your webserver

aobeda — Mon, 19 Oct 2009 14:23:00 +0100

thank yuo very good

Comment by wregen on: Create daemons in PHP

wregen — Sun, 18 Oct 2009 07:29:49 +0100

Hi, you have mentioned that one possible application of System_Daemon is : "keep your application listening (on a socket for example)". Can you provide a simple example? This will help me a lot. Thank you.

Comment by Shawn on: Survive heavy traffic with your webserver

Shawn — Sat, 17 Oct 2009 21:18:13 +0100

awesome tips. your website has been a pot of gold for me, keep up the good work!

Comment by Kees on: Create daemons in PHP

Kees — Sat, 17 Oct 2009 20:51:40 +0100

Hei David, I'm using our solution to create several daemons ( 20 + ) which communicate with each other thru spread (ipc), however, when creating more then 12 daemonson one server, it seems that the cpu usage dramaticly increases(measured thru 'top' ), is that something you are aware of, or is this something php specific ?

Comment by AMartin on: Make ISO images on Linux

AMartin — Fri, 16 Oct 2009 16:14:04 +0100

Simple and great for people liking cmd. For people who like "interactive" way You can use k3b for example with option "only make an image". Cheers

Comment by Derek on: Schedule tasks on Linux using crontab

Derek — Wed, 14 Oct 2009 18:23:22 +0100

thanks Kevin, you are the Explainer!

Comment by Tanzmusik on: Create short IDs with PHP - Like Youtube or TinyURL

Tanzmusik — Sun, 11 Oct 2009 12:21:48 +0100

wow, just great. The only improvement i mean is to modify the code by adding or removing some letters before use. If you do not modify, then everyone else can reveal your primary key structure.

Comment by rajeshnair on: Schedule tasks on Linux using crontab

rajeshnair — Sun, 11 Oct 2009 03:54:53 +0100

Really helpful

Comment by earth host on: Survive heavy traffic with your webserver

earth host — Fri, 09 Oct 2009 12:52:22 +0100

excelant article nicely done

Comment by Kevin on: Create daemons in PHP

Kevin — Fri, 09 Oct 2009 11:16:24 +0100

@ David: You may want to find out and see if you can use PEAR's Fork class in combination with System_Daemon to help you with that. @ Joe: Thanks for the comments, np. Would it be possible for you to share the code somewhere? maybe pastebin? I'm having a hard time doing all this in my head. Give me something to test with and we can take it from there

Comment by Kevin on: Make SSH connections with PHP

Kevin — Fri, 09 Oct 2009 11:11:03 +0100

@ nebj00la: Using shell & many sleeps helped me when talking to routers. @ nathan: Before writing a class, checkout: http://www.seoegghead.com/blog/seo/ssh2-php-howto-guide-ssh-connections-made-easy-in-php-p343.html (Jaimie Sirovich already did it) and http://pear.php.net/pepr/pepr-proposal-show.php?id=586 A PEAR class in the making

Comment by Kevin on: Create short IDs with PHP - Like Youtube or TinyURL

Kevin — Fri, 09 Oct 2009 11:07:54 +0100

@ BnoL: This is not intended for security. Pure usability. If you want security you should probably use a lookup table or use UUIDS for records directly.

Comment by nebj00la on: Make SSH connections with PHP

nebj00la — Tue, 06 Oct 2009 17:37:46 +0100

Kevin, Here's the SSH daemon running on the remote device: SSH-2.0-RomSShell_4.31 Thanks, John

Comment by nebj00la on: Make SSH connections with PHP

nebj00la — Tue, 06 Oct 2009 17:34:42 +0100

Kevin, Great article. The code works great against a linux server, but when I try to run it against a router I get the following repetitive output: return rc = -1 return rc = -1 return rc = -1 return rc = -1 etc. etc. Please advise, Thanks, John

Comment by macrocode on: Make SSH connections with PHP

macrocode — Tue, 06 Oct 2009 03:31:39 +0100

2 words: THANK YOU!

Comment by nathan on: Make SSH connections with PHP

nathan — Sun, 04 Oct 2009 11:56:10 +0100

very nice examples, haven't tried them yet, but i'm going to in a sec. will probably use your tips to create an ssh class. wonder if it'll work on my wamp as well. thanks for the help in getting me started. Nathan.

Comment by Joe on: Create daemons in PHP

Joe — Wed, 30 Sep 2009 16:30:39 +0100

At last, I think I've found the smoking gun: First, I tried putting some cleanup immediately after the main loop. Even if I send SIGTERM to the main pid, I never seem to make it out of the loop to do any cleanup. Nothing gets logged. Second, I set up my own handler for SIGTERM. In here, I look at the value of $child which points to our child process object (wherein there is a shutdown function). However, $child is null! This could be a result of the process forking, and the handler is really occurring in the pre-daemon world. If that's so, how do I communicate to the other side to shut things down gracefully? (Apologies for the multiple stream-of-consciousness posts! Maybe someone else is having the same issue though, so this might help.)

Comment by Joe on: Create daemons in PHP

Joe — Wed, 30 Sep 2009 16:01:58 +0100

OK, I have to call System_Daemon::defaultSigHandler($sig) (passing in the signal that was passed to my own handler). Silly me. :)

Comment by Joe on: Create daemons in PHP

Joe — Wed, 30 Sep 2009 15:45:13 +0100

Ahh, I've removed the child process from the equation. Even if I never run it, TERM just won't make this pup quit. I did try setSigHandler for SIGTERM, and my function _does_ get called, but the loop keeps on going. I guess I could set runningOkay to TRUE but this isn't an error condition we're bailing out of. :-o Clues welcome/appreciated!

Comment by Joe on: Create daemons in PHP

Joe — Wed, 30 Sep 2009 15:38:59 +0100

First, this is fantastic!!! (Also, this is fantastic!) In my case I'm using this for a monitor that dips into a data store every ten seconds. The monitor launches a child process to munch on said data. Now, this process is best kept open for a prolonged period, only to be closed after 60 minutes of inactivity (although if we absolutely have to shut it down, that's fine too). That's where the problem is, shutting it down. If I send TERM to the monitor, it won't go away until that child process shuts down. However, in the monitor, the last thing I do (once isDying() is true) is exit my loop and check for that child process. If it's around, we tell it to exit. I never get to that part though. It' s as if isDying() isn't returning TRUE after sending TERM to the daemon. Hmm ...

Comment by David on: Create daemons in PHP

David — Wed, 23 Sep 2009 13:35:05 +0100

Hi Kevin, Good lib. Just wondering if you can give me some advice about spawning children from within the daemon. Essentially I want to start x instances of the daemon, that run (looking for jobs from a Gearman server) for the entire time the daemon is running. This may not be the best approach. I imagine that spawning children AS work/jobs come into the daemon would be a more efficient, however I haven't been able to get that working with System_Daemon yet. So far this is what I'm doing (and seems to be working) and I'm wondering if there are any problems with something like the following: [code="php"] for($i=0; $i<3; $i++) { $pid = pcntl_fork(); if ($pid == -1) { exit('Could not fork children'); } else if ($pid) { System_Daemon::log(System_Daemon::LOG_INFO, 'Spawned child: ' . $pid); } else { while (!System_Daemon::isDying()) { // do something like look for a job from gearman $gmw->work(); System_Daemon::iterate(1); } System_Daemon::stop(); } } [/code] I understand that potentially if the children exit they could become zombies, however I'm not sure if that applies in this situation as I want the children to run for the life of the parent (daemon). Any help / guidance would be greatly appreciated.

Comment by Llorca on: Make SSH connections with PHP

Llorca — Tue, 22 Sep 2009 20:55:09 +0100

Kevin, Thanks for the link to the SSH2 Wrapper, that looks like an excellent base for me to start with. Much appreciated. I've got some minor configuration issues too where PHP is barking about some stuff, but I'm sure I'll get it sorted soon enough.

Comment by Alfredo Rivera on: Make SSH connections with PHP

Alfredo Rivera — Fri, 18 Sep 2009 14:55:17 +0100

I Have tried so many times to install this on a Centos 5 Server, but for some reason it couldnt be installed, I had 2 shell experts working for 4 hours and none of both could successfully install this function, Does anyone hear about this isue?

Comment by BnoL on: Create short IDs with PHP - Like Youtube or TinyURL

BnoL — Thu, 17 Sep 2009 17:22:24 +0100

Hi, nice tut. But I think every encode script need to have a "password key" so that noone else can decode your ID :) (unless he/she knows your password key).

Comment by Kevin on: Create daemons in PHP

Kevin — Thu, 17 Sep 2009 10:18:03 +0100

@ Remiko: This should prove to be enough: [CODE="BASH"] ./Daemon.php ./Daemon ./Daemon/Options.php ./Daemon/OS.php ./Daemon/OS ./Daemon/OS/Ubuntu.php ./Daemon/OS/Debian.php ./Daemon/OS/Fedora.php ./Daemon/OS/BSD.php ./Daemon/OS/RedHat.php ./Daemon/OS/Windows.php ./Daemon/OS/Linux.php ./Daemon/OS/Exception.php ./Daemon/Exception.php [/CODE] You could even also leave out the operating systems you're not planning on using. But on the other hand: if you're going to need multiple files anyway, why not just add the entire dir. It will really only add a few kbs.

Comment by Kevin on: Schedule automatic updates on Ubuntu

Kevin — Thu, 17 Sep 2009 10:13:39 +0100

@ Enrico: Well I already setup my crontab as root, so for me there was no need, but yeah you could do it that way as well. The user is optional. @ Ron: For untrusted packages something like this should work: [CODE="BASH"] aptitude -o Aptitude::Cmdline::ignore-trust-violations=true -y update [/CODE]

Comment by Kevin on: Survive heavy traffic with your webserver

Kevin — Thu, 17 Sep 2009 10:10:22 +0100

@ DV: Yeah like I said, I should probably redo this again some time cause the article is more than 2 years old now : )

Comment by Kevin on: Determine SID of Windows user

Kevin — Thu, 17 Sep 2009 10:09:41 +0100

@ calanan & Adam: Thanks for sharing

Comment by Kevin on: Flush memcached using BASH

Kevin — Thu, 17 Sep 2009 10:09:17 +0100

@ Robin Speekenbrink: thx. No not really. Guess I'm just really used to xargs as it gives you the power to do anything with files found. But -delete should work just fine!

Comment by Remiko on: Create daemons in PHP

Remiko — Sat, 12 Sep 2009 14:10:08 +0100

Could I know the minimum file lists in standalone packages to let the daemon without PEAR?

Comment by Mattias on: Schedule tasks on Linux using crontab

Mattias — Fri, 11 Sep 2009 14:01:09 +0100

Very nice! Thanks Kevin.

Comment by Ron on: Schedule automatic updates on Ubuntu

Ron — Thu, 10 Sep 2009 14:10:58 +0100

Great article and just what I need BUT a problem: System = Ubuntu 9.04 Log shows following: ************* clip ************* Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you want to do. wine-gecko Do you want to ignore this warning and proceed anyway? To continue, enter "Yes"; to abort, enter "No": Abort. ********** end clip ************** Problem is that the -y does not answer yes to the last prompt and the update just sits. I confirmed this by running the commands manually in terminal ... it needs a " yes " and does not respond to a " y "

Comment by Enrico on: Schedule automatic updates on Ubuntu

Enrico — Wed, 09 Sep 2009 10:53:30 +0100

Nice article, it helped me a lot. But shouldn't crontab require the user executing the scheduled command? maybe the line should be like this.... 0 1 * * * root (/usr/bin/aptitude -y update && /usr/bin/aptitude -y safe-upgrade) 2>&1 >> /var/log/auto_update.log In my ubuntu system i also had to " touch /var/log/auto_update.log" Am i on the light side of the Force or maybe too much tired? ;)

Comment by DV on: Survive heavy traffic with your webserver

DV — Tue, 08 Sep 2009 16:47:03 +0100

I don't know if anyone has mentioned it yet, but nginx is an excellent webserver for those in need to save memory/CPU while serving max amount of users. I use nginx in conjunction with php-fpm and xcache, and things fly. This is a great article!

Comment by calanan on: Determine SID of Windows user

calanan — Tue, 08 Sep 2009 14:59:24 +0100

Great tip, just what I was looking for. Thanks. p.s. Works on XP SP3

Comment by Robin Speekenbrink on: Flush memcached using BASH

Robin Speekenbrink — Tue, 08 Sep 2009 06:52:28 +0100

Nice and to the point article... a little off topic maybe: why not use the -delete option in find to delete all the found files instead of piping it to xargs etc? Does that have a special reason to it?

Comment by kumar chavan on: Make ISO images on Linux

kumar chavan — Mon, 07 Sep 2009 07:33:44 +0100

what is advantages of making cd-image and mounting it? plese tell me source where i can find well information about iso image technique.

Comment by Kevin on: Block brute force attacks with iptables

Kevin — Fri, 04 Sep 2009 14:12:05 +0100

@ Donn Lee: You're welcome!

Comment by Kevin on: Convert anything to Tree Structures in PHP

Kevin — Fri, 04 Sep 2009 14:11:25 +0100

@ Shubhadeep: That's way to much credit : )

Comment by Kevin on: Make SSH connections with PHP

Kevin — Fri, 04 Sep 2009 14:09:35 +0100

@ Derak: Do a find on php.ini and try to see if Maybe a different php.ini is used?

Comment by Kevin on: My new IDE: NetBeans

Kevin — Fri, 04 Sep 2009 14:07:55 +0100

@ Robin Speekenbrink: Sounds to me it raises more problems than it solves. Haven't been using windows since ages and haven't missed it once. If anything; it's a relieve. My productivity has increased like crazy having brilliant usability features, and the power of command line tools at my disposal.

Comment by Donn Lee on: Block brute force attacks with iptables

Donn Lee — Wed, 02 Sep 2009 03:41:44 +0100

Very useful tutorial! I see what the 'recent' module is doing now. "cat /proc/net/ipt_recent/SSH" shows you the source addresses that are being tracked. So doing that 'cat' after some test ssh connections really demonstrates the utility of this simple, effective filter. Thanks!

Comment by Shubhadeep on: Convert anything to Tree Structures in PHP

Shubhadeep — Mon, 31 Aug 2009 12:23:10 +0100

You are a GOD to me :)

Comment by Derak on: Make SSH connections with PHP

Derak — Thu, 27 Aug 2009 23:41:37 +0100

I am having trouble with this. I am running php entropy (php5-5.2.5-6-beta) on Mac OSX Serve 10.5.8. And I successfully installed libssh2-1.1 and did a pecl -f ssh2 successfully. I go through all the steps without problem, but ssh2 is never activated. ssh2.so gets created and put into "/usr/lib/php/extensions/no-debug-non-zts-20060613/" and my php.ini file has: extension_dir = "/usr/lib/php/extensions/no-debug-non-zts-20060613/" extensions=ssh2.so Here is a php_info() page for everything on my server: http://studentdev.jour.unr.edu/derak/images/rlb/ ssh2 should be showing up in my "Registered PHP Streams" section, but it is not. Any ideas? I feel like I've tried everything here.

Comment by Robin Speekenbrink on: My new IDE: NetBeans

Robin Speekenbrink — Wed, 26 Aug 2009 07:53:37 +0100

Netbeans has improved since i last visited... and indeed the sFTP support is in there.. but it still just cant quite compete with the ease of use of zendstudio5 And yes: offcourse we use versioncontrol systems, but dev-ing on a windows machine, with *nix files doesnt really work (case sensitive filenames etc) So we keep our files on a *nix machine, dev on windows and test on the *nix... The choise for a windows dev-machine is plain and simple: ease of use... :)

Comment by AskApache on: Schedule tasks on Linux using crontab

AskApache — Mon, 24 Aug 2009 13:47:02 +0100

Nice and thorough guide, thanks I still don't have it all memorized.

Comment by Kevin on: Make SSH connections with PHP

Kevin — Sat, 22 Aug 2009 15:52:11 +0100

@ Reinard: Thanks for sharing!

Comment by Kevin on: Create daemons in PHP

Kevin — Sat, 22 Aug 2009 15:51:34 +0100

@ Jason: There were some bugfixes recently. What version did you try? @ Kris: Autch.. Love your gravatar though :)

Comment by Kevin on: Survive heavy traffic with your webserver

Kevin — Sat, 22 Aug 2009 15:49:28 +0100

@ Julius Beckmann: Yeah like I said, I should probably redo this again some time cause the article is almost 2 years old now.

Comment by Reinard on: Make SSH connections with PHP

Reinard — Tue, 18 Aug 2009 21:35:33 +0100

If you are having problems sending multiple commands you're likely forgetting to close the stream inbetween sending individual commands. Try doing an fclose() on the stream resource between the ssh2_exec() calls.

Comment by Kris on: Create daemons in PHP

Kris — Thu, 13 Aug 2009 13:23:47 +0100

Apparently this was caused by a wrong EOL in my php script. Using dos2unix on the daemon.php file fixed the problem... took me 3hours to find this one :-/

Comment by Kris on: Create daemons in PHP

Kris — Thu, 13 Aug 2009 10:11:09 +0100

I have a weird problem. I created a daemon based on the logger example. I ran the script using ./daemon.php, then killed it with the command killall -9 daemon.php (notice the 9 not g) the process was killed, but when I try to restart the script i now get: Extension './daemon.php' not present I have no clue how to solve this... the script ran the first time.

Comment by scripter on: Schedule tasks on Linux using crontab

scripter — Thu, 13 Aug 2009 09:53:38 +0100

some more information about unix crontab http://scripterworld.blogspot.com/2009/07/unix-crontab-configuration-with.html

Comment by Jason on: Create daemons in PHP

Jason — Wed, 12 Aug 2009 13:12:45 +0100

I have installed all the required libraries and created a test which I start at the command line with php socket.php I have made a separate sub directory of the pid so that it lives in socket/socket.pid. The continue to get "socket daemon was unable to write pid file" although the script does delete the file. I recreate the file and I get the same error and the file is gone. Any thoughts on what I might do. I am running the script as root and have checked all ownership and permissions.

Comment by Julius Beckmann on: Survive heavy traffic with your webserver

Julius Beckmann — Wed, 12 Aug 2009 13:04:54 +0100

Nice article, some of the mentioned techniqes might be too much for a normal Admin but there are some nice ideas in there. You did not mention PHP Op-Code Cachers like APC and XCache - They can reduce the load by simply installing them and let them cache your PHP Scripts. Also your MyISAM and InnoDB tipp is no general fact, it has to be selected wisely on your setup and website. You also forget to mention moving static files to Amazon S3 cloud or simply using Lighttpd or Nginx for static files.

Comment by Kevin on: Make SSH connections with PHP

Kevin — Wed, 12 Aug 2009 10:19:57 +0100

@ Eugene van der Merwe & Brian & 1oBuZ: If using a different version doesn't work, you could try using a different method: Try switching from blocking <> nonblocking. Or try using a shell instead of execute. If that doesn't help start working with sleep and see if the problem is caused by buffers being too lazy, finally if it's a couple of commands you could try to concatenate them with the ';' sign or the '&&' signs (in case you want to build a chain: if one fails, all following fail as well). This can actually save you some exectuion time as well. @ Llorca: Be sure to check out: http://www.seoegghead.com/software/ssh2-php-wrappers.seo

Comment by Kevin on: Survive heavy traffic with your webserver

Kevin — Wed, 12 Aug 2009 10:14:32 +0100

@ brant: that's nice of you thanks! :) Though some things are already outdated again. I think I'm going to have to do another version some day.

Comment by Kevin on: Schedule tasks on Linux using crontab

Kevin — Wed, 12 Aug 2009 10:13:38 +0100

@ ruchi: Made a modification. Can you see it again? What browser are you usng?

Comment by Kevin on: Create daemons in PHP

Kevin — Wed, 12 Aug 2009 10:12:51 +0100

@ Peter: Have a look at http://brian.moonspot.net/php-fork

Comment by 1oBuZ on: Make SSH connections with PHP

1oBuZ — Sun, 09 Aug 2009 16:02:04 +0100

I have got the same problem wehn u will find a solution please tell here :)

Comment by Peter on: Create daemons in PHP

Peter — Sat, 08 Aug 2009 19:43:12 +0100

Kevin, I'd like to use your class for as job scheduler daemon in PHP where I have the daemon run various jobs throughout different times of the day. I'd like the daemon to simply spawn each job in a child process and go back to being a daemon without each job running within the daemon's process. How hard would this be to do without interfering with your class? Thanks How hard would it be to have some of the code running with the daemon

Comment by Brian on: Make SSH connections with PHP

Brian — Sat, 08 Aug 2009 09:38:36 +0100

Hello, Im having some issues with outputting the results of the command, sometimes it works, other times it doesnt. I cannot return the output for something as simple as 'pwd', other times it will return the output of /etc/init.d/mysqld status, other times it wont. The command seems to complete because i can do something like: cat /etc/php.ini >> test.txt sure enough the file is there, but if i tried to cat a small file with 1 word in it, no output. i thought maybe it was the length on fopen, increasing it didnt make a difference, oddly sometimes I can output the status of httpd or mysql, then other times it just wont do it.. any ideas?

Comment by Eugene van der Merwe on: Make SSH connections with PHP

Eugene van der Merwe — Sat, 08 Aug 2009 05:29:03 +0100

#217. Charlie, I have the same problem as you. What I am trying to achieve is make one connection but send multiple commands. The first command works, but on second try I also get "Unable to request a channel from remote host.". Googling this didn't produce much results, except someone who insinuates this does not happen in libssh 0.13 (see http://www.mail-archive.com/libssh2-devel@lists.sourceforge.net/msg01804.html). So I suppose my question is, how to I open one connection and run multiple commands without getting any errors? :-)

Comment by Eugene van der Merwe on: Make SSH connections with PHP

Eugene van der Merwe — Sat, 08 Aug 2009 05:10:41 +0100

#210. Fatima, if you get error LIBSSH2_ERROR_EAGAIN use the latest version of libssh2 (I used libssh2-1.1.tar.gz). Kevin refers to an old version here.

Comment by Sean Hess on: Create daemons in PHP

Sean Hess — Tue, 04 Aug 2009 15:50:22 +0100

@Kevin - The original motivation was to get the daemon's loop to run as a separate script, since writing a loop with System_Daemon was causing strange problems. Thanks for your article and work!

Comment by brant on: Survive heavy traffic with your webserver

brant — Tue, 04 Aug 2009 13:54:13 +0100

I rarely make comments on blogs, but this article was so good I had to. It touches on a lot of different areas that can take you months to fully optimize. I know, because it took me quite a few months until i was satisfied. Not only are these good tips for heavy traffic'd sites, but good tips in general for a speedy and responsive website.

Comment by ruchi on: Schedule tasks on Linux using crontab

ruchi — Tue, 04 Aug 2009 11:12:53 +0100

Hi Kevin...In the section "Mailing the crontab output of just one cronjob" the scrolled part is not visible..please let me know the full command.

Comment by Ruchi on: Schedule tasks on Linux using crontab

Ruchi — Tue, 04 Aug 2009 10:44:31 +0100

Very useful article...

Comment by Kevin on: Create daemons in PHP

Kevin — Tue, 04 Aug 2009 10:39:30 +0100

@ Easy Daemons in PHP: I'm honored that someone build a wrapper around my wrapper : ) Haven't looked at the code yet, but if it does what you need: I'm happy.

Comment by Kevin on: Prepare for PHP 5.3

Kevin — Tue, 04 Aug 2009 10:38:10 +0100

@ Nate Abele: Thanks for the heads-up. I saw on twitter that the dev version of 1.3 was released today. Nice job! Were you able to get your hands on some Club Mate for that ? ; )

Comment by Easy Daemons in PHP on: Create daemons in PHP

Easy Daemons in PHP — Mon, 03 Aug 2009 14:11:30 +0100

[...] This class and script makes it easy to turn a one-shot php script into a daemon that runs in the background on a timer [...]

Comment by Nate Abele on: Prepare for PHP 5.3

Nate Abele — Sat, 01 Aug 2009 12:43:03 +0100

Hey Kevin, good post. I just wanted to let you know that 5.3 support has now been pushed to the CakePHP 1.3 branch, which will be released shortly, so core code changes shouldn't be be required soon.

Comment by Rune Kaagaard on: Prepare for PHP 5.3

Rune Kaagaard — Fri, 31 Jul 2009 11:46:01 +0100

@Philip Olson, Thx for clarifying. Interesting to hear about the possible decoupling of the <?=$some_var?> syntax. @Andrea Giammarchi, how is short tag a mess for modules? (and what kind of modules are you referring to?). I have always felt that having the ease of the <?=$some_var?> syntax _by far_ made the impurity of having to echo "<?xml" ... worth it. PHP is a super cool template language where shorttags fits in nicely. so shortags....? GOOD! :)

Comment by Kevin on: Prepare for PHP 5.3

Kevin — Fri, 31 Jul 2009 10:26:43 +0100

@ xrado: Well with any modern IDE you shouldn't have to type that manually. They probably should have never supported it in the first place. PHP isn't the only language out there. Just think of XML: [CODE="XML"] <?xml version="1.0" encoding="UTF-8"?> [/CODE] This can cause confusion, so I understand why they want to drop it.

Comment by xrado on: Prepare for PHP 5.3

xrado — Fri, 31 Jul 2009 10:08:25 +0100

i really don't see a reason for dropping short tag support. writing php a 1000 times is a nonsense

Comment by Kevin on: Prepare for PHP 5.3

Kevin — Fri, 31 Jul 2009 09:47:14 +0100

@ Andrea Giammarchi: No sorry I still think you're missing my point. As we speak, CakePHP people are working on PHP 5.3 versions. I just want to enable people to testdrive their code right now even though they don't have a stable 5.3 framework core - yet. So comparison with IE6 isn't really working as I'm encouraging people to update everything. Please read my article more carefully, I have the feeling your IE6 concerns where triggered by false alarm. @ Matthew Weier O'Phinney: That's a nice summary of of PHP 5.3 goodness. I'm actually the most excited about this release since... Well a very long time : ) @ Rune Kaagaard: Thanks. I read it somewhere, but apparently the jury is still out on that one, let me adjust the article @ Philip Olson: Thanks you for clarifying on that subject, I will adjust the article accordingly @ Cory Kaufman: I agree that would be nice, but I imagine a fix for that would be really hacky. I mean: it either recognizes shorttags or it doesn't. A state inbetween that detects but does not act on it may introduce bugs on it's own. @ Giorgio Sironi: Thanks I will add them as well!

Comment by Giorgio Sironi on: Prepare for PHP 5.3

Giorgio Sironi — Fri, 31 Jul 2009 08:38:39 +0100

I was using ereg_*() functions and I have to convert to preg_*() ones. Fortunetale magic_quotes_gpc and register_globals are gone from a long time. @Matthew: when Zend_Loader will support namespaced classes?

Comment by Cory Kaufman on: Prepare for PHP 5.3

Cory Kaufman — Fri, 31 Jul 2009 03:26:33 +0100

I wish PHP failed more loudly when short tags are disabled. I've had them turned off on my local server for a while, but it always leads to some odd results when I download code that uses short tags.

Comment by Llorca on: Make SSH connections with PHP

Llorca — Thu, 30 Jul 2009 23:00:45 +0100

This is fantastic. I'm building this out into a PHP class for use on an automation project. I'll link back to this post for proper recognition :) Thanks for sharing this, its awesomely useful