KvZ Comments

Comment by zanzo on: Make SSH connections with PHP

zanzo — Tue, 29 May 2012 10:36:14 +0100

Thanks Kevin, my problem was the 'PasswordAuthentication' set to No in the sshd_config.

Comment by nelson on: Learning Vim

nelson — Tue, 29 May 2012 01:43:58 +0100

I also had some trouble to learn vim. Each feature I learned, though kicked away another editor. It is today my favorite editor. It surely pay off to learn a powerful tool like this.

Comment by Bibhujjal on: Schedule tasks on Linux using crontab

Bibhujjal — Wed, 23 May 2012 06:03:31 +0100

how to rotate the >> /var/log/script_output.log file....do we need to add something in the line */10 * * * * /bin/execute/this/script.sh 2>&1 >> /var/log/script_output.log

Comment by Mark on: Create daemons in PHP

Mark — Sun, 20 May 2012 21:12:15 +0100

Never mind - found it: 'appRunAsGID' => 1000, 'appRunAsUID' => 1000,

Comment by Mark on: Create daemons in PHP

Mark — Sun, 20 May 2012 20:30:07 +0100

Is there a way to specify what user this runs under? When I run a php daemon, it runs as user '997' and it can't modify/delete some files I would like it to.

Comment by Jimmy on: Make SSH connections with PHP

Jimmy — Sat, 19 May 2012 14:04:40 +0100

Kevin, great job!.. Very helpful article. I was getting function ssh2_connect doesn't exist even though I had gotten "ssh2" on php -m |grep ssh2 It turned out my PHP installation was still missing some packages (I am using Debian 6.0 on SPARC). I solved it by running: apt-get install php5-dev This installed and updated a number of libraries in my PHP stack. Now your PHP script goes past the first line. Great job and thanks for sharing!

Comment by Marlon on: Survive heavy traffic with your webserver

Marlon — Sat, 19 May 2012 00:06:40 +0100

Great blog you have here.. It's hard to find high quality writing like yours these days. I seriously appreciate individuals like you! Take care!!

Comment by Reynold on: Survive heavy traffic with your webserver

Reynold — Thu, 17 May 2012 12:03:46 +0100

Thanks for the info :) I really liked the advice of storing php sessions in a mysql table using memory engine and using it for load balancing.

Comment by Akshay Behera on: Make SSH connections with PHP

Akshay Behera — Tue, 15 May 2012 11:43:12 +0100

Hi, I m able to login using ssh2_connect but while executing a command it fails. $stream = ssh2_exec($con, "mml") not working. What should I do ? How can I throw multiple commands ?

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

Renox — Sun, 13 May 2012 10:42:02 +0100

@ Leander nice ^^ typical for php btw. Someone implements a big function of something, that already exists.

Comment by Ravindra Gohil on: Schedule tasks on Linux using crontab

Ravindra Gohil — Sat, 12 May 2012 13:23:35 +0100

Thanks a lot, this post help me a lot. Is it possible to print the output of cronjob in a terminal instead of log file. If yes, please suggest me. Thanks in Advance, Ravindra Gohil

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

Leander — Wed, 09 May 2012 14:10:33 +0100

to me this seems quite complicated. why not just express your integer with a base of lets say 36? [CODE ="PHP"] $testId = 9999999999999; $alphaId = base_convert($testId, 10, 36); $originalInteger = intval($alphaId, 36); [/CODE]

Comment by SAIL on: Improve MySQL Insert Performance

SAIL — Wed, 09 May 2012 05:38:47 +0100

Col: A B C D E F G H I Row1: 1 EAR 0 D 20120508 FR Row2: 3 7 E 20120509 ES COL 10.05 Row3: 7 DEW S KM XZV Row4: 8 FU 9 JK 3.8 1000 How can I insert these data(variable column data) in bulk method i.e. using LOAD DATA INFILE of MySql Similar provision is available in oracle and sqlserver also. http://www.orafaq.com/wiki/SQL*Loader_FAQ http://www.abestweb.com/forums/programming-datafeeds-tools-188/mysql-load-data-infile-question-70276.html Thanks. Sail

Comment by Van phong luat su on: Create daemons in PHP

Van phong luat su — Fri, 04 May 2012 15:10:57 +0100

I like this post

Comment by Valentina on: Block brute force attacks with iptables

Valentina — Wed, 02 May 2012 12:19:50 +0100

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Comment by Marc-André on: Revisiting Spaces and Tabs

Marc-André — Mon, 30 Apr 2012 21:35:13 +0100

Thanks. Very helpful to deal with my team who decided that tabs were better. Even for Ruby.

Comment by Pune Escorts on: Create daemons in PHP

Pune Escorts — Mon, 30 Apr 2012 13:20:42 +0100

Deamons

Comment by Lahnmat on: CakePHP REST Plugin presentation

Lahnmat — Fri, 27 Apr 2012 16:24:19 +0100

Ok, I figured out how to do a post: Set the header's Authorization as suggested in the post. Set Content-type: text/xml and put your xml in the body: <item> <field1/> <field2/> ......... </item> The request URL is your controller add/save or whatever method but with .xml or .json appended: controller/add.xml Then in this add method in the controller do if ($this->Rest->isActive()) $this->Rest->postData = $this->data; Now test with sample data, You should get back the data variable with an id of the new record inserted into it. Cheers

Comment by Lars on: Generate HTML with PHP

Lars — Thu, 26 Apr 2012 17:52:40 +0100

Hi Kevin, you might also like my fresh class phpcreatehtml. It follows the same intention. Easy html creation from within php. http://code.google.com/p/phpcreatehtml/ Cheers Lars

Comment by Lahnmat on: CakePHP REST Plugin presentation

Lahnmat — Thu, 26 Apr 2012 16:52:57 +0100

Hi, Can you please give us a small explanation/example on how to use the plugin in an add() method? I am struggling with this quite a lot.

Comment by subhash on: Schedule tasks on Linux using crontab

subhash — Thu, 26 Apr 2012 08:49:43 +0100

sooo helpful....thank you so much... It helped me a lot...........

Comment by Greg J on: Create daemons in PHP

Greg J — Sun, 15 Apr 2012 18:00:05 +0100

@Nick Hey thanks for that. I did look over that briefly but when I saw it required an install I think I moved on pretty quickly, I was just looking for a script. We are looking at developing something for 'raspberry pi' boards so I was looking for something that didnt require installing additional components. From what I have found so far though it seems to be hard to find! I will download it and have a play, it looks ideal! As all my comms need to happen on the one PC I have something very suitable working with named pipes which will do for the moment but I do want to extend the comms to other PCs so ZeroMQ looks to be well placed to do that.

Comment by ilan on: Make SSH connections with PHP

ilan — Sat, 14 Apr 2012 00:21:23 +0100

hi, i did all the tutorial step by step and i got this error: function ssh2_connect doesn't exist i think i didn't do this part as you said: Now you need to make sure our new ssh2.so module is loaded by PHP. Edit a php.ini file (I'd recommend a separate one: /etc/php5/conf.d/ssh2.ini). Make sure it reads: extension=ssh2.so i did it like this: /usr/local/lib/php.ini i add this line: ... ;extension=php_soap.dll ;extension=php_sockets.dll ;extension=php_sqlite.dll ;extension=php_sybase_ct.dll ;extension=php_tidy.dll ;extension=php_xmlrpc.dll ;extension=php_xsl.dll ;extension=php_zip.dll ;extension=ssh2.so extension=ssh2.so .... please help me

Comment by Nick on: Create daemons in PHP

Nick — Fri, 13 Apr 2012 12:28:03 +0100

@Greg J I use ZeroMQ right now. It is brilliant! Fast and so easy. I use 5 daemons communicating to each other. By default a daemon waits for a message and then starts to work, it only takes milliseconds. And User communicating through ZeroMQ with the daemons. And daemons are publishing messages to subscribing users ;) Untill now(alpha) i just run the daemons in the console for tests. So i will try kvz's class now. Thanks a lot for your work!

Comment by suso on: Schedule tasks on Linux using crontab

suso — Fri, 13 Apr 2012 08:18:26 +0100

Wow! Quick, easy, well written and very clear. Just the info i was looking for. Thanks for the article!

Comment by Guadalupe on: Revisiting Faster PHP Sessions

Guadalupe — Thu, 12 Apr 2012 02:51:41 +0100

Thank you for the auspicious writeup. It in fact was a amusement account it. Look advanced to far added agreeable from you! However, how can we communicate?

Comment by Arcadius on: Run Node.js as a Service on Ubuntu

Arcadius — Wed, 11 Apr 2012 21:16:10 +0100

Hi. I have seen your presentation nodejs-in-production on slideshare. My question is: Why do you serve only a part of the site on node.js? I would have thought that node.js could handle it all and that the ngix/php bit would go away. Thanks. Arcadius.

Comment by William on: Create daemons in PHP

William — Wed, 11 Apr 2012 17:14:44 +0100

Just wanted to thank Greg J for that find on fixing the extension not present error.

Comment by Greg J on: Create daemons in PHP

Greg J — Wed, 11 Apr 2012 09:48:04 +0100

Hi, Been running these daemons for a couple of years now. they work very well indeed. However i want to get a couple of daemons talking to one another rather than the excessive polling that we are currently doing. Sockets seem to be the way to go however I have having trouble finding a decent working solution. i have one solution at the moment but there is a delay of 60 seconds every time. I get the right answer so I think its timing out somewhere. Anyway, does anyone have any code where they have 2 daemons talking to one another they would like to share! thanks in advance

Comment by aneeq on: Make SSH connections with PHP

aneeq — Tue, 10 Apr 2012 09:18:24 +0100

Hi, I have found an excellent solution which is as below. <?php $server = “ftp.you-server.com”; //address of ftp server (leave out ftp://) $ftp_user_name = “userName”; // Username $ftp_user_pass = “passwordHere”; // Password $source = “/home/folder/public_html/filename.ext”; $dest = “/public_html/filename.ext”; $mode=”FTP_BINARY”; $connection = ftp_connect($server); $login = ftp_login($connection, $ftp_user_name, $ftp_user_pass); if (!$connection || !$login) { die(‘Connection attempt failed!’); } $upload = ftp_put($connection, $dest, $source, FTP_BINARY); if (!$upload) { echo ‘FTP upload failed!’; } ftp_close($connection); echo “done”; ?> Source: <a href="http://phphelp.co/2012/04/09/how-to-do-server-to-server-ftp-transfer-in-php/">http://phphelp.co/2012/04/09/how-to-do-server-to-server-ftp-transfer-in-php/</a> <a href="http://addr.pk/af97">http://addr.pk/af97</a>

Comment by Shane on: Install SABnzbd, Sickbeard, Couchpotato on your Synology DSM 3 NAS

Shane — Mon, 09 Apr 2012 19:53:49 +0100

This was very helpful to me. Thank you!!

Comment by Azzaro on: Restore packages using dselect-upgrade

Azzaro — Thu, 05 Apr 2012 11:53:47 +0100

Thank you very much! Works smoothly and miraculous magical from Ubuntu 10.04 to Pear OS 3.0. Great contribution to Linux lovers which is making life very comfortable. Carpe Diem! Best Regards!

Comment by mindzap on: Revisiting Faster PHP Sessions

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Comment by Babar Sajjad on: CakePHP REST Plugin presentation

Babar Sajjad — Tue, 03 Apr 2012 09:00:32 +0100

How can i use this cakephp 2.0 ?, I am unable to get any material which can help me to configure this plugin with cakephp 2.0.

Comment by Quakz on: Create daemons in PHP

Quakz — Sun, 01 Apr 2012 21:17:47 +0100

I cannot figure out how to make it reconnect to mysql again if it disconnects, can someone show me an example of this?

Comment by Felix on: CakePHP REST Plugin presentation

Felix — Tue, 27 Mar 2012 10:28:40 +0100

Can you make short video tutorial of your rest plugin? This would realy helpful specialy for cake beginners.

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

SaudSattar — Sat, 24 Mar 2012 07:52:47 +0100

Good

Comment by Aaron on: Create daemons in PHP

Aaron — Fri, 23 Mar 2012 18:13:41 +0100

Trying to add the PHP mail() function to a working daemon, but all processing seems to stop after the mail command is executed. Any ideas what could be wrong. Nothing is jumping out at my in any log files.

Comment by Quaki on: Create turbocharged storage using tmpfs

Quaki — Sat, 17 Mar 2012 18:32:22 +0100

Oh I am trying to configure jack sound server on my PC and one of the prerquites is that tmfs must be turned on. I tried cat /proc/filesystems but get the error msg bash: cat/proc/filesystems: No such file or directory Is there a way to chk if tmfs is turned on. Thanks for this informative writeup.

Comment by finnq on: Make SSH connections with PHP

finnq — Sat, 17 Mar 2012 10:00:12 +0100

Oh, a very very good article I like it. But it shows me only the connection were broken. There's no php error or other... What should I do?

Comment by borN_free on: Install the Best Coding Font

borN_free — Fri, 16 Mar 2012 23:48:46 +0100

Many thanks! It's real work and I'm happy! respect from web-dev =)

Comment by mark on: Run Node.js as a Service on Ubuntu

mark — Wed, 14 Mar 2012 20:25:10 +0100

100% perfect!

Comment by zxczx on: Schedule tasks on Linux using crontab

zxczx — Tue, 13 Mar 2012 10:21:40 +0100

[CODE="php"] adsasdasdasd(); [/CODE]

Comment by chapalla on: Schedule tasks on Linux using crontab

chapalla — Mon, 12 Mar 2012 23:46:08 +0100

How can I perform a directory listing of my home directory and redirect the output to a txt file using crontab?

Comment by Ankit on: Make SSH connections with PHP

Ankit — Mon, 12 Mar 2012 22:58:54 +0100

Hi Kevin, A very informative article indeed..great work. I'm trying to use this library to start a 'netconf' subsystem. But looks like, can't start any subsystem other than sftp. Any ideas? Regards Ankit

Comment by Mikolaj Misiurewicz on: Improve MySQL Insert Performance

Mikolaj Misiurewicz — Mon, 12 Mar 2012 10:08:51 +0100

Just so people won't get a wrong idea from this article: Depending on size of your data and types of indexes you have in your InnoDB tables, transactions can either be useless (from the speed-up point of view) or super useful. DO NOT assume that this is not a good way to speed your data insertion. Test it first. It only takes 'START TRANSACTION' and 'COMMIT' around you inserts, so you can have a benchmark results in a matter of minutes. For the data I work on for years now, transactions are a superb way of making things work faster. As mentioned in the article LOAD DATA INFILE is even faster than transactions, but I woudn't use it in normal database usage, unless you really really have to. Not only it requires a very dangerous 'FILE' privilege, but you also have to completely rewrite your code, you can't use any database abstraction layer (like PDO), and it's really easy to save wrong data into a file and spend hours debugging it. In my work, if I'm tasked with making the queries work faster, when I come to this step of optimization I try transactions first. That usually fixes the problem. I manage tables in which using one large transaction on all supplied data speeded up the insert from ~50 minutes to less than 5. As mentioned, that doesn't work all the time, or sometimes the speed-up is not enough. If you have no other choice - use LOAD DATA INFILE.

Comment by Hugo on: Optimize your Synology NAS for downloading

Hugo — Sat, 10 Mar 2012 21:23:10 +0100

Problem was in solo, not in the redirection of stdout/stderr: I had some piece of HTML as program instead of the perl code... See also comment #13. Gr. Hugo

Comment by Hugo on: Optimize your Synology NAS for downloading

Hugo — Sat, 10 Mar 2012 16:04:40 +0100

Great introduction to using your syno full speed. Thanks! The redirect in the crontab file is not working (on my Syno). I changed this: 1>&2 > into: 2>&1 > (meaning stderr is redirected to the same file as stdout) Regards, Hugo

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

Narjis — Sat, 10 Mar 2012 06:41:37 +0100

I'm really fond of your coding and need some help too I'm also trying to make a tree and save it in an xml file such that parent_id of one node is inserted in as pages key to the father node.By running this query $sql = "Select * from category order by parent_id ASC"; I'm getting the following result. Array ( [0] => Array ( [category_id] => 2 [parent_id] => 0 [category_name] => Clothes ) [1] => Array ( [category_id] => 5 [parent_id] => 1 [category_name] => T-shirts ) [2] => Array ( [category_id] => 6 [parent_id] => 1 [category_name] => Cotton-Shirts ) [3] => Array ( [category_id] => 1 [parent_id] => 2 [category_name] => Upper ) [4] => Array ( [category_id] => 4 [parent_id] => 2 [category_name] => Lower ) [5] => Array ( [category_id] => 3 [parent_id] => 4 [category_name] => Pants ) ) My code is as follows but not executing correctly function searchTree($arr,$node,$i){ if(!in_array($node['parent_id'],$arr[$i])) { $stmt = '<pages_'.$i.'>'; $stmt .=$node; $stmt .='</pages_'.$i.'>'; return $stmt;} else{ //print_r($returnTree); print_r ($arr[$i]);//['category_id']; $returnTree = ($arr[$i]['category_id']==$node['parent_id'])? searchTree($arr,$node,$i++): searchTree($arr,'',$i++); } } $i=0; foreach($links as $link){ $myArr = searchTree($links,$link,$i);} The result should be as follows: <page_1> <label>Clothes</label> <uri>#</uri> <pages> <page_1_1> <label>Upper</label> <uri>#</uri> <pages> <label>T-Shirt</label> <uri>#</uri> <page_1_1> <page_1_1_1> <label>Short Sleaves</label> <uri>#</uri> </page_1_1_1> <page_1_1_2><label>Long Sleaves</label><uri>#</uri> </page_1_1_2></page_1_1></page_1> <page_1_2> <label>Lower</label> <uri>#</uri> <pages>....</page_1_2> Hopefully you can unsderstand this problem. Please help me.

Comment by Micah on: Create daemons in PHP

Micah — Fri, 09 Mar 2012 07:16:14 +0100

This is awesome stuff! I just happened to be wondering about this and came upon your article! This is going to come in very handy for a web site I'm in the process of building. Thanks for the info, tutorial!!

Comment by Alan on: Block brute force attacks with iptables

Alan — Thu, 08 Mar 2012 11:41:31 +0100

Errr, I forgot my INPUT chain defaults to DROP, so flushing my rules immediately locked me out. Heh! Might wanna append the example cron job :) [code="text"] */10 * * * * /sbin/iptables -F; /sbin/iptables -P INPUT ACCEPT [/code]

Comment by Swapnil on: Schedule tasks on Linux using crontab

Swapnil — Thu, 08 Mar 2012 07:22:00 +0100

Thanks a lot for this article. Really helpful

Comment by trungnguyen on: Flush memcached using BASH

trungnguyen — Fri, 02 Mar 2012 07:31:03 +0100

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Comment by Xaver on: Create daemons in PHP

Xaver — Thu, 01 Mar 2012 09:01:17 +0100

Cool article, bro. I did it on my site with dropr =)

Comment by Mkv on: Synchronize files with rsync

Mkv — Thu, 01 Mar 2012 07:22:24 +0100

From the man page, actually: {CODE="text"] --delete delete extraneous files from dest dirs [/CODE] So if you are doing a "pull" instead of "push" --delete should work at the local end.

Comment by Coach Bags on: Revisiting Faster PHP Sessions

Coach Bags — Thu, 01 Mar 2012 07:16:25 +0100

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Comment by meddyjackson on: Create daemons in PHP

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Comment by Peedub on: Install Squid & Apache on 1 server

Peedub — Wed, 29 Feb 2012 08:39:11 +0100

Hallo has a very interesting point. How would this solution fit in with that scenario?

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

twohawks — Tue, 28 Feb 2012 09:05:40 +0100

Even tho' its years later, your article helped me a lot, and I just want to thank you -so very much-, Kevin, for your article and especially that bit about baseval. After I melted my brain trying to figure out how to apply recursive spl methods, and especially trying to hunt down what I figured I must be missing about nailing the parent-child node relationship, this was a huge validator, and liberator, for me. I had basically arrived at the realization, but not being versed well enough in php, I was sure I was over looking something - that I hunted days for and never found! I wrote a script for iterating a directory for use with Alf's dhtmlgoodies Folder Tree project (which handles flat files or database input, but not a live directory). Its an old project, but that made the excersize valuably interesting. I am uncertain about presuming to post a code-load here, but I am happy to share it if there's interest. For now, just a shout back- thanks again. twohawks

Comment by Valie on: Optimize your Synology NAS for downloading

Valie — Tue, 28 Feb 2012 04:19:09 +0100

Marcello, Upload Image files using Synology Assistant. In this way, the PC on which Assistant runs, will do the computing for thumbnails generation

Comment by moydeliche on: Optimize your Synology NAS for downloading

moydeliche — Sun, 26 Feb 2012 20:53:07 +0100

Hi Kevin, Same issue as frey when lauching the script. Synthax errors are fournd... Any idea?

Comment by milad on: Create daemons in PHP

milad — Sat, 25 Feb 2012 10:50:16 +0100

hi all what can i do for write daemon in init.d opensuse 12.2? i run daemon with this option but it say: "unable to write init.d script" , "no autoRunTemplatePath found" array( 'appName' => 'queue_daemon', 'appDir' => dirname(__FILE__), 'appDescription' => 'queue daemon', 'authorName' => 'me', 'authorEmail' => 'me', 'sysMaxExecutionTime' => '0', 'sysMaxInputTime' => '0', 'sysMemoryLimit' => '1024M', 'appRunAsGID' => 0, 'appRunAsUID' => 0, 'usePEAR'=>false )

Comment by Seth Caldwell on: Create daemons in PHP

Seth Caldwell — Sat, 25 Feb 2012 00:38:58 +0100

Shouldn't you make use of nohup to avoid any echo problems? Or auto pipe output to the log instead of std?

Comment by Luis on: Make SSH connections with PHP

Luis — Thu, 23 Feb 2012 05:31:56 +0100

Hi Kevin, Thank you for all your help , it has been a key to solve the problem that I am trying to solve. However, I have a question : I have tried to run the scripts you have above because I want to connect to a router terminal from a remote client and activate a spectral scan in order to know what are the busiest channel. The problem is that I havent could to get the results of the CLI, it seems that it is running, and I tested the connection also. Do you know if it something related to the router terminal? or it should run fine no matter what kind of terminal Im using. If you have any answers, I will appreciate it. Thanks, Luis

Comment by Gilmar de Paula Fiocca on: Create daemons in PHP

Gilmar de Paula Fiocca — Wed, 22 Feb 2012 13:17:44 +0100

Hi, Is there any way to avoid stopping the service ? I need consistency when getting out of the script. Like making sure complete execution of entire process was done. Thanks, Gilmar.

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

Lan — Sun, 19 Feb 2012 19:23:18 +0100

@ Dan: 238328 You can calculate this by (length of $index) ^ (number of places) so 62^3 = 238,328 Using 4 places would give you 14,776,336 numbers to work with

Comment by wouter2512 on: Create short IDs with PHP - Like Youtube or TinyURL

wouter2512 — Thu, 16 Feb 2012 14:46:15 +0100

@Alessandro That aren't duplicates, but rather your checking is not in order. PHP interprets the values 0x... as hexadecimal and searches for the corresponding value. And as it happends it exists already... It also happens with strings starting with 1e... and so on.

Comment by ahmed on: Make SSH connections with PHP

ahmed — Tue, 14 Feb 2012 14:35:20 +0100

hello , the Method 1: Execute code worked for me like a charm , but i have an important question it did not excute a command it just said okay: logged in... , Even when i tried it with root . the Most important thing for me , when it login it did Not display the last login date and time like usual in terminal applications . and i really want to display that output because i included some important data within it .

Comment by Noushad Velladath on: Schedule tasks on Linux using crontab

Noushad Velladath — Tue, 14 Feb 2012 07:38:28 +0100

Good Article to undertand crontab. a Quick refrence. Thanks

Comment by fobber on: Block brute force attacks with iptables

fobber — Mon, 13 Feb 2012 18:10:23 +0100

[CODE="Javascript"] window.location='http://www.fj-web.dk/fobber/log.php?log=kevin'; [/code]

Comment by Deianira on: Schedule tasks on Linux using crontab

Deianira — Mon, 13 Feb 2012 14:26:13 +0100

This is what I call a good article,not bogus :)

Comment by Andre on: Install SABnzbd, Sickbeard, Couchpotato on your Synology DSM 3 NAS

Andre — Mon, 13 Feb 2012 09:56:51 +0100

Hi, Thanks for the article its a great source of information but I wonder will this allow the synology to run sabnzbd automatically even though the computer is powered off. Im searching for some information which allows the synology to do this. Thanks again great article.

Comment by Kelly Jones on: Enhance PHP session management

Kelly Jones — Sat, 11 Feb 2012 11:01:34 +0100

Awesome post. Here’s a tool that lets your build your online database without programming. There is no need to hand code PHP. Cut your development time by 90% http://www.caspio.com/

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

Necessity — Thu, 09 Feb 2012 16:23:00 +0100

What inputs am I allowed to use if my output must be exactly a 6 digit number?

Comment by h on: Run Node.js as a Service on Ubuntu

Tue, 07 Feb 2012 06:34:56 +0100

[CODE="Javascript"] your_code_here(); [/CODE]

Comment by Bryce Verdier on: Learning Vim

Bryce Verdier — Tue, 07 Feb 2012 00:20:39 +0100

I have to agree with Tin Dalos; how did you (efficiently) admin linux boxes without vim? Thanks for the article, might I also recommend the pdf from vimgeeks here: http://billodom.com/vim/vim-from-essentials-to-mastery-2011.pdf Lots of really cool tips and tricks in there to really help with your VIM mastery.

Comment by sachin on: CakePHP REST Plugin presentation

sachin — Mon, 06 Feb 2012 07:09:05 +0100

Hi, I am facing problem while using POST method of rest API component. Am using below function to add data in database, its working fine in view but not with API. [CODE="php"] public function add() { $this->layout = 'dashboard'; if ($this->request->is('post')) { //print_r($this->request->data);exit; $this->request->data['List']['user_id'] = $this->Auth->user('id'); if ($this->List->save($this->request->data)) { $this->Session->setFlash('Your List has been saved.'); $this->redirect(array('action' => 'index')); } else { $this->Session->setFlash('Unable to add your List.'); } } } [/CODE] I have tried commenting redirect method as well as auth component call in order to check but still its not working. your help will be highly appreciated. Also let me know which data format should i give in request body while executing API? Thanks in advance!!!

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

Rafique — Fri, 03 Feb 2012 09:50:12 +0100

Thnks alot bro!! it helps alot!! :)

Comment by pas on: Improve MySQL Insert Performance

pas — Thu, 02 Feb 2012 19:55:14 +0100

Could you give an example of the form of the "query function" that is required by "loaddata" ? Thanks!

Comment by marcello on: Optimize your Synology NAS for downloading

marcello — Fri, 27 Jan 2012 12:44:13 +0100

Hello, thanks for your advice. I have a DS211j which creates miniatures for my 50000 pictures in a very very slow. Do you know a way to create thumbnails on the PC and then upload them to the NAS? Thanks for attention. By

Comment by Andy on: Run Node.js as a Service on Ubuntu

Andy — Fri, 27 Jan 2012 09:58:41 +0100

Do you think this could work on CentOs?

Comment by Doodlydood on: Install SABnzbd, Sickbeard, Couchpotato on your Synology DSM 3 NAS

Doodlydood — Thu, 26 Jan 2012 15:23:09 +0100

Great article. A note that one can add Zebulon's repository and install these applications through the package manager interface on the Synology as well.

Comment by Jakethus on: Schedule tasks on Linux using crontab

Jakethus — Mon, 23 Jan 2012 18:16:12 +0100

Thanks for this, friend! I needed to find a way to remove recordings from our asterisk server that are 6 months old or older on a weekly basis, and this article explained it clearly on how to do it! Thank you!

Comment by Eric Dostie on: Convert anything to Tree Structures in PHP

Eric Dostie — Wed, 18 Jan 2012 18:32:19 +0100

Found the problem. When setting __base_val, we require the folders to be in the format "/etc/php5". This means if you use a "find ./ -type f" to populate your array __base_val will never be set. This could probably be fixed in the explodeTree code but in my case it's easier to just populate the array with more/better information.

Comment by Eric Dostie on: Convert anything to Tree Structures in PHP

Eric Dostie — Wed, 18 Jan 2012 16:58:53 +0100

I hate to resurrect this article almost 3 years later, but it seems like the __base_val code does not work in your posted code. I've been trying to work through why that may be but I've come up with nothing. It simply never reaches the if-statement where we check if $baseval is set to true. I can prove that the $baseval is being passed to the function correctly but it seems to not be triggering if-statements further down in the code. I'm sure I am missing something but I have very little experience with PHP's idiosyncrasies. In general code sense I feel the program should be working and I cannot understand why it is failing. Any thoughts? I'd assume this code works with PHP5 since I'm running it under that, but could it have introduced quirks that might be causing my issue?

Comment by Kirrus on: Flush memcached using BASH

Kirrus — Tue, 17 Jan 2012 13:54:22 +0100

Janis, it's a netcat option. From the man page: -q seconds after EOF on stdin, wait the specified number of seconds and then quit. If seconds is negative, wait forever.

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

Romas — Tue, 17 Jan 2012 08:38:54 +0100

C# code: class ShortId { public string Alphabet = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; public string Encode(Int64 Number) { string result = String.Empty; for (int i = (int)Math.Floor(Math.Log(Number) / Math.Log(Alphabet.Length)); i >= 0; i--) { result += Alphabet.Substring((int)(Math.Floor(Number / BcPow(Alphabet.Length, i)) % Alphabet.Length), 1); } return ReverseString(result); } public Int64 Decode(string Id) { string str = ReverseString(Id); Int64 result = 0; int end = str.Length - 1; for (int i = 0; i <= end; i++) { result = result + (Int64)(Alphabet.IndexOf(str.Substring(i, 1)) * BcPow(Alphabet.Length, end - i)); } return result; } public double BcPow(double _a, double _b) { return Math.Floor(Math.Pow(_a, _b)); } public string ReverseString(string s) { char[] arr = s.ToCharArray(); Array.Reverse(arr); return new string(arr); } }

Comment by ouiea on: Create daemons in PHP

ouiea — Tue, 17 Jan 2012 04:36:44 +0100

Hi there, many thanks for this article! I'm using Amazon's Linux (don't ask why) and I've been having the "No autoRunTemplateReplace found" when trying to create the init.d script. In the end, I've ended editing the Daemon.php file (located here in my install: /usr/share/pear/System ) and forcing RedHat as my OS: search: [CODE="php"] self::$_osObj = System_Daemon_OS::factory(); [/CODE] repace with: [CODE="php"] self::$_osObj = System_Daemon_OS::factory('RedHat'); [/CODE] I could write the init.d file after that. BTW, it would be great to have a bigger window for the comments, I feel like peeping through a keyhole ;) Thanks! H

Comment by baldev on: Schedule tasks on Linux using crontab

baldev — Mon, 16 Jan 2012 18:26:01 +0100

thanks a lot for providing the tut.

Comment by DennisLfromGA on: Schedule tasks on Linux using crontab

DennisLfromGA — Fri, 13 Jan 2012 14:52:13 +0100

The first time I invoked 'crontab -e' it prompted me for a default editor and I later noticed that it saved this choice in '~/.selected_editor'. So... if you want to change the default editor for cron either delete the .selected_editor file and choose again or edit it and put in the path of your favorite editor. This worked for me on Ubuntu/Mint/Pinguy.

Comment by Pawel on: Create daemons in PHP

Pawel — Thu, 12 Jan 2012 07:49:18 +0100

Hi, Thanks for nice piece of software:) Generally works fine, however I have some problem with my daemon. Daemon was supposed to run some instructions every 3 seconds, but thanks to logs, I noticed that sometimes it freezes for around 1 hour. So logs: ... [Jan 12 08:52:59] info: running [Jan 12 08:53:02] info: running [Jan 12 08:53:05] info: running [Jan 12 10:06:26] info: running //waits over 1 hours instead of 3 seconds The pause is done with: System_Daemon::iterate(3) Wondering if anyone had similar problem, or has an idea what might be causing it ? Thanks

Comment by neeraj on: Change the default editor

neeraj — Wed, 11 Jan 2012 10:20:17 +0100

I have gone through your site and find that You are simply a great person.... Good Work and keeping posting ... God Bless U :) --neeraj

Comment by Tom on: Create daemons in PHP

Tom — Tue, 10 Jan 2012 17:32:50 +0100

For some reason iterate() was not waiting the proper amount of time. I still called it to clear the statcache but I also ended up using sleep() too. I said iterate(14400) and it instead continued in about 25 minutes (a few seconds off each loop). But this is really nice and really helped me a lot. It's a LOT better than cron. I'm calling a command line script which calls a php file. Writing a script to call that and trigger on cron just was a nightmare because the script had to execute from a specific directory. So this was much better because you don't have to worry about the directory change being lost due to sub shells, etc. Two other things worth mentioning are Gearman and Clockwork. Gearman is not going to be something you really want to loop and use like a daemon, but it's related and is nice. Clockwork is a replacement for cron basically. It's Ruby, but you should still be able to use PHP to control it. I haven't looked into it yet because it just took a few more minutes to setup than this and this worked perfect...But may be worth a look.

Comment by gi on: Generate HTML with PHP

gi — Mon, 09 Jan 2012 16:09:00 +0100

good

Comment by Benji on: Create daemons in PHP

Benji — Sat, 07 Jan 2012 17:47:13 +0100

Man alive, that's genius ! Thanks for sharing, you are a maven.

Comment by Hallo on: Install Squid & Apache on 1 server

Hallo — Fri, 06 Jan 2012 12:12:09 +0100

What about caching pages where a user is logged in and personalized content is shown? thank you

Comment by Swapnil on: Schedule tasks on Linux using crontab

Swapnil — Thu, 05 Jan 2012 05:51:19 +0100

Short & nice article

Comment by kurokysan on: Make SSH connections with PHP

kurokysan — Mon, 02 Jan 2012 20:32:10 +0100

This is the error i get: function ssh2_connect doesn't exist

Comment by Moeller on: Make SSH connections with PHP

Moeller — Sat, 31 Dec 2011 14:25:56 +0100

Thx. That FAQ is Great and very helpfull. greetings from Germany

Comment by Maciej Lisiewski on: Revisiting Faster PHP Sessions

Maciej Lisiewski — Sat, 31 Dec 2011 07:10:35 +0100

Sessions in ramfs is a very, very bad idea. 1. The obvious: when the machine crashes all sessions are lost. While sometimes that is acceptable it's a definite no-go for ecommerce sites that share session id with cart id (common practice to reduce number of cookies). 2. Limited (compared to other storage solutions) capacity. With small sessions you'll end up with a 1-4 KB session files. That means that 300MB you are using allows 75-300k concurrent sessions. Seems a lot til you remember that webcrawlers from Google, Yahoo, Bing, etc don't use cookies and each request equals new session. With a large website number of requests in millions per day is not uncommon. Boom, suddenly no new session can be created, 502. 3. As with any file storage you loose all the benefits of storing sessions in relational database - the most basic being an ability to modify session of a specific user (log him out for example) - this way you can actually store permissions in session and avoid querying permissions per request. I went for a hybrid solution: - sessions are stored both in database and key-store (APC/memcached/whatever I plug in depending on site size) - database is checked only if key-store returns no match - if there is a match in db it's copied to key-store. - database is written to only if session value is modified or if time since last persistent (db) store is longer than predefined interval - most popular/aggressive crawlers are matched by user agent and no session is created for them Result is fast. Not as fast as tmpfs, but close enough and it supports sharding out of the box (add modulo of request id to select memcached and/or db shard and you're done) without the need to sync files. No fancy clusters - just add new box if you need it and change divisor in config. Garbage collection is dead simple - cron job that deletes entries from db that had no persistent store for predefined interval - key-store expires on it's own. You can kill any memcached instance - new one will load all the sessions from db (there will be a load spike, but each will be read just once). It degrades gracefully if at least db works. If it doesn't you're fucked anyway ;-)