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Introduction to PHP Classes (OOP)
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Introduction to PHP Classes (OOP)
http://www.phpfreaks.com/tutorials/48/0.php
Introduction to PHP Classes (OOP)
PHP > Tips and Tutorials > Introduction to PHP
Oct 15, 2006
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Object orientated programming (OOP) is a commonly used term when discussing modern programming techniques. One of the things that makes humans stand out is the ability to categorise - we put objects into categories of similar type of function. For example, we have the category vechicle. Within this category, you have the different types of vehicle - car, bug, train, van. In the same bag, a llama is a type of animal. This analogy applies to programming - we create functions to do specific tasks and then group similar functions into classes. No only does this organise everything, but also allows a common access point for these similar functions.
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This guide is a basic explanation on how to use Object Orientated PHP. You need an understanding of PHP before you attempt this.
What is OO PHP you ask. Well, it uses classes (explained later), functions, and variables in a way so they all work together.
What is OO PHP you ask. Well, it uses classes (explained later), functions, and variables in a way so they all work together.
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Let's get started. The first thing to do is connect to the database.The function to connect to MySQL is called mysql_connect. This function returns a resource which is a pointer to the database connection. It's also called a database handle, and we'll use it in later functions. Don't forget to replace your connection details.
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It is often necessary to arrange the elements in an array in numerical order from highest to lowest values (descending order) or vice versa (ascending order). If the array contains string values, alphabetical order may be needed. Sorting a one-dimensional arrays is quite easy.
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5. PHP: Arrays
Arrays can most easily be described as an ordered list of elements. You can access the individual elements by referring to their index position within the array. The position is either specified numerically or by name. An array with a numeric index is commonly called an indexed array while one that has named positions is called an associative array. In PHP, all arrays are associative, but you can still use a numeric index to access them
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