PHP is a general-purpose scripting language that is especially suited for Web development. The online manual is an excellent resource for the language syntax and has an extensive list of the built-in and extension functions. Most extensions can be found in PECL.

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What kind of server do I need to handle 10 million requests and mySQL queries a day? [closed]

I'm a newbie of server administration and I'm looking for a powerful hosting service to host my new website. This website is basically a back-end of an mobile online game, and it will: handle up to ...
12
votes
4answers
6k views

Ubuntu's garbage collection cron job for PHP sessions takes 25 minutes to run, why?

Ubuntu has a cron job set up which looks for and deletes old PHP sessions: # Look for and purge old sessions every 30 minutes 09,39 * * * * root [ -x /usr/lib/php5/maxlifetime ] \ &&...
12
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2answers
44k views

Install php extensions on ubuntu

I have a Ubuntu 9.10 server. I have installed apache2 and php5 using the apt-get commands. How does one install php extensions? Are there commands like apt-get to get them? Or should I manually look ...
12
votes
3answers
1k views

The A to Z of setting up a Linux box for secure local hosting

I am in the process of reinstalling the OS on a machine that will be used to host a couple of applications for our business. The applications will be local only; access from external clients will be ...
12
votes
2answers
881 views

improve our deployment strategy

We have an ecommerce app that we develop at our company. Its a reasonably standard LAMP application that we have been developing on and off for about 3 years. We develop the application on a testing ...
11
votes
3answers
48k views

How do I change the NGINX user?

I have a PHP script that creates a directory and outputs an image to the directory. This was working just fine under Apache but we recently decided to switch to NGINX to make more use of our limited ...
11
votes
7answers
20k views

Apache2 Proxy timeout

I have Apache2 with PHP + PHP-FPM configured according to: http://wiki.apache.org/httpd/PHP-FPM I am writing a script that will take a long time to execute on an internal Vhost, but keep getting ...
11
votes
4answers
11k views

How to add Postgres support to PHP installed by Homebrew?

I have already installed and configured new version of PHP with Homebrew, including MySQL support and XDebug. That works fine. However, I need to install the support for PostgreSQL as well. How can I ...
11
votes
6answers
33k views

What permissions / ownership to set on PHP Sessions Folder when running FastCGI / PHP-FPM (as user “nobody”)?

I'm having trouble getting a number of scripts running because PHP-FPM can't write to my session folder: "2009/10/01 23:54:07 [error] 17830#0: *24 FastCGI sent in stderr: "PHP Warning: Unknown: ...
11
votes
5answers
57k views

How to install mcrypt for PHP 5.3.3 on CentOS 5.7 64 bit?

I installed php 5.3 and some modules using yum install php53-{module-name} But mcrypt did not work. I searched like this: yum list php* | grep mcry The only package that came up was php-...
11
votes
3answers
19k views

Change default from address from Postfix from www-data to something else

Setting up Postfix and Apache/PHP on an Ubuntu server. Mail's now going out ok with the proper domain name, but the local part display name is always "www-data" as I'm assuming Postfix uses the name ...
11
votes
1answer
29k views

How to install GD library in php?

when I tried to use imagefromjpeg() function in PHP,it throwed error.So, I tried to install GD library using the following command: sudo apt-get install php5-gd But I got the following error. ...
10
votes
12answers
28k views

How to watch logs in real time via Terminal?

This is a basic question - in the movie "The Social Network" there are several scenes when the young Facebook staff is watching the PHP/Apache server logs on in their TERMINAL in real time. I'm ...
10
votes
5answers
2k views

Safe to have /.svn/ folders on live site? (How to remove them but retain svn update capability?)

I'm doing svn update to update the code for my php website, but it leaves .svn/ folders all over. I think its dangerous to leave those files publically readable, but its very easy to update the ...
10
votes
1answer
6k views

How to add directives to php.ini on AWS Elastic Beanstalk?

I'd like to add these PHP settings to my Elastic Beanstalk environment: upload_max_filesize = 64M post_max_size = 64M These options cannot be set with option_settings in .ebextensions: Namespace ...
10
votes
7answers
694 views

Making the move to source control

Ours is a fairly small company (3-4 programmers and 3-4 site designers) that develops a single-purpose PHP web app which provides the functionality to about 100+ websites. We've operated for a couple ...
10
votes
3answers
22k views

How to upgrade PHP 5.4 to PHP 5.6 on Debian GNU/Linux 7 (wheezy)

I've added these lines to /etc/apt/sources.list deb http://packages.dotdeb.org wheezy-php56 all deb-src http://packages.dotdeb.org wheezy-php56 all But still sudo apt-get update or sudo apt-get ...
10
votes
3answers
14k views

Why are outdated packages installed by yum on CentOS? (specifically PHP 5.1) How to fix?

I'm working on a fresh CentOS server and am extremely annoyed to find out that yum does not work as smoothly and brilliantly as "apt-get install" does on Ubuntu. Installing a LAMP stack, I ran the ...
10
votes
3answers
19k views

Content-Length not sent when gzip compression enabled in Apache?

I would really appreciate some help understanding this Apache behaviour. I am communicating to PHP from an iPhone Objective-C app in application/json. Gzip compression is enabled on the server, and ...
10
votes
3answers
4k views

Secure LAMP server for production use

What is the procedure for securing a Linux, Apache, MySQL, PHP Server (or even Perl) for production use? Other than setting the MySQL password and the root password for Linux what other (maybe not so ...
10
votes
4answers
72k views

How do I enable SQLite on Linux/Apache/PHP?

To enable SQLite on my Windows/Apache/PHP setup, I uncomment the following lines in the php.ini file and restart Apache: extension=php_pdo.dll extension=php_pdo_sqlite.dll Now I have a VPS with ...
10
votes
4answers
610 views

Common PHP setup insecurity?

I work with the systems administration at a university and just stumbled across something which is probably common, but was quite a shock to me. All public_html directories and web areas are stored ...
10
votes
1answer
4k views

apache on centos 5.6 gives me permissions denied error

I'm running apache on centos 5.6 and whenever i try to load a php script in any directory, other than /var/www/html (the apache default root dir) it gives me a permissions denied error. However when ...
10
votes
2answers
14k views

What are the steps to make the php mail() function work on ubuntu-server?

I want to enable the simple php mail() function on an Ubuntu server. This will only be used for sending administration stuff and logs. This is all the mail functionality that I want on this machine. ...
10
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4answers
2k views

How can I check if PHP was compiled with the UNICODE version of the Win32 API?

This is related to this Stack Overflow post: glob() can't find file names with multibyte characters on Windows? I'm having issues with PHP and files that have multibyte characters on Windows. Here's ...
10
votes
1answer
15k views

Apache MPMs - Worker vs Prefork

I'm trying to figure out what which is the best Apache MPM I can install on my VPS. I saw some benchmarks and MPM Worker seems to perform better than the Prefork one but for some reason everyone seems ...
10
votes
1answer
8k views

Why does Cacti keep waiting for dead poller processes?

I am currently setting up a new Debian (6.0.5) server. I put Cacti (0.8.7g) on it yesterday and have been battling with it ever since. Initial issue The initial issue I was observing, was that my ...
10
votes
2answers
4k views

Why so many gettimeofday calls?

Why does the PHP/Apache combo do so many gettimeofday syscalls? Even though the're quick every call is a call which should be accounted for. Just a quick strace -c -p [apache2 process id], gives the ...
10
votes
2answers
707 views

MediaWiki slow save of edited pages

I have MediaWiki 1.16.2 on a the following LAMP platform, which performs quite good for other apps on a 16 GB RAM dual processor machine: CentOS 5.7 (64-bit) Apache 2.2.3 MySQL 5.0.77 PHP 5.1.6 It ...
9
votes
8answers
867 views

Building a Student Storage server

I work for a school district. I've been put in charge of building a storage server for students. A place for them to work off of from school and home. My challenge is getting this to work from ...
9
votes
2answers
638 views

My server Admin wants me to set public write permissions on a directory

I'm relatively new to web development, so please be patient. I'm primarily an iPhone developer, but have recently done a site for someone else using shared hosting. I could write to files in PHP on ...
9
votes
3answers
19k views

How to Upgrade PHP to 5.4.10 on CentOS 6.3

# cat /etc/redhat-release CentOS release 6.3 (Final) # php -v PHP 5.3.3 # yum update php No Packages marked for Update How do I upgrade to the latest version PHP 5.4.10 (Current stable) ?
9
votes
3answers
10k views

AWS RDS connection count

I am using AWS RDS with MySQL for a project and have a "large" instance. The documentation is clear on what this means as far as compute resources and RAM goes, but I can't find anything that ...
9
votes
4answers
19k views

How do I set up per-site php.ini files on a LAMP server using NameVirtualHosts?

I have a LAMP server serving a number of different websites using NameVirtualHosts. Until recently having a global php.ini file has been just fine, but recently one of our developers has requested ...
9
votes
2answers
322 views

My server setup for a heavily used API

I will soon be buying a bunch of servers for an application that I am about to launch but I have concerns about my setup. I appreciate any feedback I get. I have an application which will make use of ...
9
votes
1answer
21k views

Apache .htaccess <ifModule not allowed here

Running Apache on Ubuntu Precise, with PHP 5.5 Trying to access my var/www/ gives me a 500. /var/log/apache2/error.log shows: /var/www/web/.htaccess: <IfModule not allowed here my .htacess is ...
9
votes
8answers
33k views

How do I install PHP 5.3 on CentOS?

I have to install PHP 5.3 on my CentOS server. If I do yum install php, the base repository installs 5.1.6 which is too old for the applications I need to install. So I've been trying to use the IUS ...
9
votes
4answers
38k views

How to --enable-dom without recompiling PHP?

From the output of phpinfo(), --disable-dom are included the configure command. How do I change it to --enable-dom without recompiling PHP? Edit: I'm using Fedora 10. The PHP i'm using is the one ...
9
votes
5answers
15k views

PHP 5.3.1 Undefined Symbol: OnUpdateLong error on Apache Startup

I'm running Ubuntu 8.04 on this server. I had PHP 5.2 installed via the package manager. I removed it to install PHP 5.3.1 by hand. I built the packages like so ./configure --prefix=/opt/php --with-...
9
votes
2answers
5k views

mod_rewrite does not forward GET parameters

I'm having trouble setting up Apache with mod_rewrite on my development machine. Mod_rewrite is active, and works well for some rules. Some rules do not work as intended, like this one: RewriteRule ^...
9
votes
1answer
16k views

How to install/enable GMP (math functions) for PHP on Ubuntu?

When calling a gmp math function like gmp_mod, I get: Fatal error: Call to undefined function gmp_mod() I have installed the php5-gmp package and restarted the web-server, and the function is still ...
9
votes
2answers
18k views

Apache error log with PHP errors

I just set up PHP and Apache and would like to find where the errors are going. What is the default path of the error logs in apache for PHP?
9
votes
1answer
443 views

Using IE to invoke PHP/CURL for long running data API causes Apache2 server to freeze and require restart

I'm running a PHP program that works fine as long as it's not invoked by a Microsoft IE browser, after which it spawns the below processes, locks up Apache2 and requires a restart of the web server (...
9
votes
5answers
20k views

PHP on Linux: How to make PHP use proxy settings to connect to internet?

my server is in a LAN and is connected to internet through a Proxy Server. my PHP application (Drupal), should be able to check for updates through PHP codes. how can i set Proxy Settings for PHP so ...
9
votes
11answers
1k views

.htaccess doesn't redirect to www-prefixed page properly

I'm trying to redirect an url without www. to www.version (example.com to www.example.com). I use the usual RewriteCond %{HTTP_HOST} ^example\.com [nc] RewriteRule (.*) http://www.example.com/$1 [R=...
8
votes
6answers
11k views

PECL command produces long list of errors

Currently running PHP 5.4 on CentOS 6.5. I installed the webtatic php55w package then installed PEAR+PECL without issue along with redis and mongo through PECL. Shortly after, I realized 5.5 is not ...
8
votes
8answers
939 views

Multi-site hosting - important vulnerability being missed to secure sites from each other?

EDIT #2 July 23, 2015: Looking for a new answer that identifies an important security item missed in the below setup or can give reason to believe everything's covered. EDIT #3 July 29, 2015: I'm ...
8
votes
1answer
20k views

why isn't laravel's php artisan serve server being accessible from the WWW on IIS

I have a laravel application running through the laravel artisan server: php artisan serve and it works just fine if I go on my localhost:8000.. Further, I added an inbound rule in the IIS server ...
8
votes
4answers
21k views

How to Automatically and Temporarily block an IP address making too many hits on the Server in a short timespan?

One of my LAMP servers was recently brought down by some kind of script bot looking for exploits. From the looks of it, it was making so many requests a second, that it overloaded the RAM on the ...
8
votes
3answers
29k views

Get log of mail sent with mail() from PHP (sendmail?)

After some server changes our PHP configuration got nuked, which caused a client's large mailing list to time out partially through about 4,000 addresses or more. We want to avoid sending a duplicate ...