PHP Strings Primer
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In order to accomplish almost any programming task with PHPyou'll be dealing with strings. To get the best out of PHP you must thoroughlyunderstand the basic string functions available. In this tutorial we will laydown the foundations needed for a solid understanding of strings.
In order to accomplish almost any programming task with PHP you'll be dealing with strings. To get the best out of PHP you must thoroughly understand the basic string functions available. In this tutorial we will lay down the foundations needed for a solid understanding of strings. As we examine a multitude of basic string functions, we will focus in on specific uses for each and show examples of how many of these functions can be used together. This tutorial will start with the very basic use of a string in PHP and build upon that base knowledge by showing you specific functions and how they can be used together.
Throughout this tutorial, we will divide the large number of string functions available with PHP into several areas of string functions.
The Basics -Here we will look at the difference between single quotes and double quotes. We'll also look the heredoc syntax and string concatenation.Displaying -In this section we will examine the three most common methods of displaying string -echo, print, and printf.Formatting -Different methods of formatting strings such as changing capitalization, controlling line breaks, and removing excess white space.Data Preparation -Here we will explore ways to prepare data for display or storage in a database.Counting -This section will provide you with ways to count characters in a string, check string length, and determine the number of words in a string.Substrings -In this section we will look at techniques for working with substrings. We will show you ways to locate a substring and replace portions of a string.URLs and Base64 -Here we will examine how to deal with URLs and parse them into their separate parts and also how to encode them properly. We will also see how to prepare binary data for transmission through email.Hashing -In this section we will discuss how to use hashing to perform user authentication and to validate the integrity of data.
Upon completion of this tutorial, you will have garnered an excellent understanding of the basic use of strings and how to draw on that knowledge for practical situations.
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