Don't forget to hit the ⭐ if you like this repo.
This lab exercise will introduce you to PHP files. Make sure you have XAMPP installed. You must have Apache Web Server running in order for PHP code to be processed. Please ensure that your XAMPP is configured as follows.
Figure 1.1: PHP
Please download the phpweb.zip PHP source code file. When you unzip this file, you will see two folders: exercise and msoWP. This file should be placed in the XAMPP/htdocs folder. You will be using the exercise folder (Figure 1.2) in this exercise lab.
Figure 1.2: Exercise folder
Please open the exercise folder in Visual Studio Code. The following are the outcomes of the implementation (Figure 1.3).
Figure 1.3: File exercise opens in Visual Studio Code
To create a hello.php file, follow these steps:
- Create a new file called
hello.php. - In the
<body>section, add the following code:
<?php
echo "Hello, World!";
?>Refer to Figure 1.4 for an example of what the hello.php file should look like.
Figure 1.4: hello.php
Let’s break down the different components of the code. All PHP code falls within a PHP Code Block, starting with <?php and ending with ?>. echo is a language construct. Its arguments are a list of expressions following the echo keyword, separated by commas and not delimited by parentheses. echo tells PHP to display or output whatever is included between echo and the ending semicolon ;. Between the echo and the ; is a sequence of characters — Hello, World! — that is enclosed in quotation marks. Any characters that are inside quotation marks are called a string.
To run the code, right-click and then choose PHP Server: Project Service. The results of the implementation are shown in Figure 1.5.
Figure 1.5: PHP Serve
Figure 1.6: Output
Let’s go over what the program did in more detail. PHP executed the line echo "Hello, World!"; by calling the language construct echo. The string value of Hello, World! was passed to the construct. In this example, the string Hello, World! is also called an argument since it is a value that is passed to another part of the code, such as a construct or a function. The quotes that are on either side of Hello, World! were not output to the screen because they are used to tell PHP that this section of code contains a string. The quotation marks delineate where the string begins and ends.
PHP mso.pdf contains descriptions related to PHP. Please read each item one by one. This slide also includes a lab exercise, such as Lesson 2a.php. Please see page 32 for more information. The code is available in VSC in the Syntax 2 folder (Figure 1.7).
Figure 1.7: PHP Slide
Figure 1.8: Code
Please examine the code and comprehend how it is implemented. After that, execute the code. Run all of the code in the slide.
Please create an Issue for any improvements, suggestions or errors in the content.
You can also contact me using Linkedin for any other queries or feedback.