Programming

Listing 3 A Simple inheritance model Following this example, we would do the following to create an instance of the Car object: //create a new instance of the …

Session-Handling Functions Session handling is a way of holding on to data as a user navigates your Web Site. Data can be variables or entire objects. …

In Object Oriented Programming, inheritance is a commonly used mechanism to model the relationship between two types. However, modelling such relationship …

Regular Expression Functions ereg_replace() and eregi_replace() The ereg_replace() and eregi_replace() functions replace instances of a pattern within a string …

Databases Why not store parameters in a database? If your application is already using a database, you might consider defining a special table for this purpose. …

Program Execution Functions You can use PHP’s built in program execution functions to use programs residing on your system, such as encryption programs, …

Alternatives to the command line Giving parameters on the command line is not always the best way to enter properties for your program. A typical situation …

Introduction Every programmer will encounter a situation where a choice must be made between various alternative solutions. Should tabular data be sorted in one …

Lists You will recall that in the SELECT widget in HTML programming, you could select how many choices were visible at any one time using the SIZE attribute. …

Misc. Functions The die() and exit functions provide useful control over the execution of your script, offereing an ‘escape route’ for programming errors. die() …

Static Text with Label The Label class gives you the ability to draw a single line of text in your application. There is not much to it, consider the following …

Here are yet more Built-in Functions, Mail Function If your server has access to sendmail or an SNMP gateway the mail() function sends mail to a specified …