Web Tutorial Plus!: PHP Basics

Before proceeding, i suggest to install XAMPP in your computer first if you still don't have server set up for testing and practicing PHP.

How to Embed PHP?

Using PHP tag (standard tag) or PHP block tells the server to execute php.

<?php ?>

PHP shorthand tags or short open tags, this will still work but its considered bad practice.

<? ?>
or
<?= ?>

Create a new php file using your available text editor (Notepad, Notepad++, Komodo Edit, etc.). Name it whatever you like, copy the codes below and save it.

<html>
    <head>
        <title>PHP Embedding</title>
    </head>
    <body>
        <?php echo 'Hello World'; ?><br />
        <?php echo 'Hello' . ' World <br />'; ?>
        <?php echo 18+5; ?>
    </body>
</html>

Open your browser (Internet Explorer, Firefox, Chrome, Opera, etc.) and type this URL http://127.0.0.1/ or http://localhost/ followed by php file name. Example: http://localhost/helloworld.php.

PHP Comments

Because we want to be a good programmer, it is important to use comments into our code so that we're able to quickly understand what the code or function commands especially very large complex programming.

We can make comments in PHP using the following:

<html>
    <head>
        <title>PHP Comments</title>
    </head>
    <body>
        <?php
        // single-line comments
        
        # single-line comments
        
        /* multi line comments
        multi-line comments
        multi-line comments
        multi-line comments
        multi-line comments
        multi-line comments */
        ?>
    </body>
</html>

Web Tutorial Plus!

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Friday, December 9, 2011

PHP Basics

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