Joys of Programming » PHP

PHP: Download Web Page using file_get_contents

Joys of Programming — Tue, 15 Nov 2011 11:15:16 +0000

You can use curl to download a webpage in PHP. It is also possible to download a web page using file_get_contents(). In the above example, we try to download the web page of Mozilla. Let’s try to download a non existing web page We find the following error

PHP: Associative Arrays

Joys of Programming — Fri, 21 Oct 2011 14:44:44 +0000

Arrays in PHP are different from other programming languages like C/C++? Java that they allow heterogenous elements and support negative index. Associative arrays are like the hashmaps or the key value pairs. In case of associate arrays, the indices can be strings. They are called associative arrays because you associate a string to another value [...]

PHP Arrays: Initialization with Set of Elements

Joys of Programming — Thu, 20 Oct 2011 12:47:47 +0000

It is possible to insert elements into the array one by one. But in some cases, we know the elements of an array before hand. In such cases, we can make use of the function array(). The elements to be inserted can be specified as parameters to the array. You will notice that the elements [...]

PHP Arrays: Negative Index

Joys of Programming — Thu, 20 Oct 2011 12:07:11 +0000

We see that arrays in PHP can have heterogenous elements and the elements can be inserted at any position of choice. But what we have seen is the possibility of using positive numbers as index (position). But it is also possible to use negative numbers as index. Let’s take a look at the example We [...]

Boolean Variables in PHP

Joys of Programming — Thu, 20 Oct 2011 09:17:16 +0000

As discussed in Variables in PHP, there is no need to specify the type of a variable in PHP. So, if you want to use the boolean variable in PHP, just specify the value A boolean variable can take the following values true, false, TRUE, FALSE. And the name suggests their meanings, Let’s use them [...]

Variables in PHP: Declaration and Printing

Joys of Programming — Wed, 19 Oct 2011 13:11:49 +0000

The variables in PHP are simply declared as Take for example Now you notice that we did not explicitly specify the type of the variable like many programming languages (C, C++, Java). In PHP, you don’t have to declare types. Let’s see a floating point number. Now let’s see how we can print the variables [...]

PHP in Eclipse Error: The session could not be started.

Joys of Programming — Tue, 18 Oct 2011 21:19:21 +0000

If you are trying to run PHP in Eclipse, you may encounter the following error The session could not be started. In order to generate debug information, please make sure that the debugger is properly configured as a php.ini directive. This is because you need to install a debugger in your system. There are two options available. Xdebug [...]

How to install libapache2-mod-php5filter in Ubuntu/Linux?

Joys of Programming — Mon, 22 Nov 2010 17:29:23 +0000

This package provides the PHP5 Filter module for the Apache 2 webserver (as found in the apache2-mpm-prefork package). Please note that this package ONLY works with Apache’s prefork MPM, as it is not compiled thread-safe. Unless you specifically need filter-module support, you most likely should instead install libapache2-mod-php5. The following extensions are built in: bcmath [...]

How to install libapache2-mod-php5 in Ubuntu/Linux?

Joys of Programming — Mon, 22 Nov 2010 17:29:19 +0000

This package provides the PHP5 module for the Apache 2 webserver (as found in the apache2-mpm-prefork package). Please note that this package ONLY works with Apache’s prefork MPM, as it is not compiled thread-safe. The following extensions are built in: bcmath bz2 calendar Core ctype date dba dom ereg exif fileinfo filter ftp gettext hash [...]

How to install zabbix-frontend-php in Ubuntu/Linux?

Joys of Programming — Mon, 22 Nov 2010 17:29:16 +0000

Zabbix is a server/client network monitoring system with many features. It can be used for: – high level monitoring of IT services; – centralized monitoring of your servers and applications; – monitoring of SNMP-enabled devices; – performance monitoring (process load, network activity, disk activity, memory usage, OS parameters etc.); – data visualization. This package provides [...]