- Structure of a program
- Variables and types
- Constants
- Operators
- Basic Input/Output
- Statements and flow control
- Functions
- Overloads and templates
- Name visibility
- Arrays
- Character sequences
- Pointers
- Dynamic memory
- Data structures
- Other data types
- Classes (I)
- Classes (II)
- Special members
- Friendship and inheritance
- Polymorphism
- Type conversions
- Exceptions
- Preprocessor directives
- Input/output with files
- HTML Introduction
- HTML Basic
- HTML Elements
- HTML Attributes
- HTML Headings
- HTML Paragraphs
- HTML Text Formatting
- HTML Links
- HTML HEAD
- HTML STYLES – CSS
- HTML Images
- HTML Tables
- HTML Lists
- HTML Blocks
- HTML Layouts
- HTML Forms and Input
- HTML Iframes
- HTML Color Names
- HTML Color Values
- HTML Scripts
- HTML Entities
- HTML Encoding (Character Sets)
- HTML Symbols
- HTML Uniform Resource Locators
- HTML – XHTML
- HTML Colors
- HTML5 Introduction
- HTML5 New Elements
- HTML5 Semantic Elements
- HTML5 Input Types
- HTML5 Form Elements
- HTML5 Form Attributes
- HTML5 Canvas
- HTML5 Inline SVG
PHP Require
Require vs Include When you include a file with the include command and PHP cannot find it you will see an error message like the following: PHP Code: <?php include("noFileExistsHere.php"); echo "Hello World!"; ?> Display: Warning: main(noFileExistsHere.php): failed to open
PHP Include
Without understanding much about the details of PHP, you can save yourself a great deal of time with the use of the PHP include command. include takes a file name and simply inserts that file’s contents into the script that
Using Comments in PHP
Comments in PHP are similar to comments that are used in HTML. The PHP comment syntax always begins with a special character sequence and all text that appears between the start of the comment and the end will be ignored.
PHP – Operators
In all programming languages, operators are used to manipulate or perform operations on variables and values. You have already seen the string concatenation operator “.” in the Echo Lesson and the assignment operator “=” in pretty much every PHP example