PHP Tutorial For Beginners | PHP Syntax, Comments and Variables

In this video, we are going to discuss about PHP syntax, comments and variables. Here is the outline:

🔽 PHP Syntax (Basic)
✅ File extension .php
✅ Statement should end with semicolon.

✅ Keywords are case insensitive

🔽 PHP Comments
✅ Single-line comments.
✅ Multi-lines comments.

🔽 PHP Variables
✅ Starts with $ sign followed by the variable name.
✅ Variables are case-sensitive.
✅ It must start with a letter or underscore.
✅ Cannot start with a number.

🔽 PHP Variables Scope
✅ Global Scope
Variable declared outside the function and can be accessed outside.
✅ Local Scope
Variable declared inside the function and can be accessed inside.

🔽 Accessing Global Variables
✅ $GLOBALS variable
✅ global keyword

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